// SpryData.js - version 0.35 - Spry Pre-Release 1.5
//
// Copyright (c) 2006. Adobe Systems Incorporated.
// All rights reserved.
//

var Spry; if (!Spry) Spry = {};

if (!Spry.Utils) Spry.Utils = {};

Spry.Utils.msProgIDs = ["MSXML2.XMLHTTP.6.0", "MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP"];

Spry.Utils.createXMLHttpRequest = function()
{
	var req = null;
	try
	{

		if (window.ActiveXObject)
		{
			while (!req && Spry.Utils.msProgIDs.length)
			{
				try { req = new ActiveXObject(Spry.Utils.msProgIDs[0]); } catch (e) { req = null; }
				if (!req)
					Spry.Utils.msProgIDs.splice(0, 1);
			}
		}

		if (!req && window.XMLHttpRequest)
			req = new XMLHttpRequest();
	}
	catch (e) { req = null;	}

	if (!req)
		Spry.Debug.reportError("Failed to create an XMLHttpRequest object!" );

	return req;
};

Spry.Utils.loadURL = function(method, url, async, callback, opts)
{
	var req = new Spry.Utils.loadURL.Request();
	req.method = method;
	req.url = url;
	req.async = async;
	req.successCallback = callback;
	Spry.Utils.setOptions(req, opts);

	try
	{
		req.xhRequest = Spry.Utils.createXMLHttpRequest();
		if (!req.xhRequest)
			return null;

		if (req.async)
			req.xhRequest.onreadystatechange = function() { Spry.Utils.loadURL.callback(req); };

		req.xhRequest.open(req.method, req.url, req.async, req.username, req.password);

		if (req.headers)
		{
			for (var name in req.headers)
				req.xhRequest.setRequestHeader(name, req.headers[name]);
		}

		req.xhRequest.send(req.postData);

		if (!req.async)
			Spry.Utils.loadURL.callback(req);
	}
	catch(e)
	{
		if (req.errorCallback)
			req.errorCallback(req);
		else
			Spry.Debug.reportError("Exception caught while loading " + url + ": " + e);
		req = null;
	}

	return req;
};

Spry.Utils.loadURL.callback = function(req)
{
	if (!req || req.xhRequest.readyState != 4)
		return;
	if (req.successCallback && (req.xhRequest.status == 200 || req.xhRequest.status == 0))
		req.successCallback(req);
	else if (req.errorCallback)
		req.errorCallback(req);
};

Spry.Utils.loadURL.Request = function()
{
	var props = Spry.Utils.loadURL.Request.props;
	var numProps = props.length;

	for (var i = 0; i < numProps; i++)
		this[props[i]] = null;

	this.method = "GET";
	this.async = true;
	this.headers = {};
};

Spry.Utils.loadURL.Request.props = [ "method", "url", "async", "username", "password", "postData", "successCallback", "errorCallback", "headers", "userData", "xhRequest" ];

Spry.Utils.loadURL.Request.prototype.extractRequestOptions = function(opts, undefineRequestProps)
{
	if (!opts)
		return;

	var props = Spry.Utils.loadURL.Request.props;
	var numProps = props.length;

	for (var i = 0; i < numProps; i++)
	{
		var prop = props[i];
		if (opts[prop] != undefined)
		{
			this[prop] = opts[prop];
			if (undefineRequestProps)
				opts[prop] = undefined;
		}
	}
};

Spry.Utils.loadURL.Request.prototype.clone = function()
{
	var props = Spry.Utils.loadURL.Request.props;
	var numProps = props.length;
	var req = new Spry.Utils.loadURL.Request;
	for (var i = 0; i < numProps; i++)
		req[props[i]] = this[props[i]];
	if (this.headers)
	{
		req.headers = {};
		Spry.Utils.setOptions(req.headers, this.headers);
	}
	return req;
};

Spry.Utils.setInnerHTML = function(ele, str, preventScripts)
{
	if (!ele)
		return;
	ele = Spry.$(ele);
	var scriptExpr = "<script[^>]*>(.|\s|\n|\r)*?</script>";
	ele.innerHTML = str.replace(new RegExp(scriptExpr, "img"), "");

	if (preventScripts)
		return;

	var matches = str.match(new RegExp(scriptExpr, "img"));
	if (matches)
	{
		var numMatches = matches.length;
		for (var i = 0; i < numMatches; i++)
		{
			var s = matches[i].replace(/<script[^>]*>[\s\r\n]*(<\!--)?|(-->)?[\s\r\n]*<\/script>/img, "");
			Spry.Utils.eval(s);
		}
	}
};

Spry.Utils.updateContent = function (ele, url, finishFunc, opts)
{
	Spry.Utils.loadURL("GET", url, true, function(req)
	{
		Spry.Utils.setInnerHTML(ele, req.xhRequest.responseText);
		if (finishFunc)
			finishFunc(ele, url);
	}, opts);
};

Spry.Utils.addEventListener = function(element, eventType, handler, capture)
{
	try
	{
		element = Spry.$(element);
		if (element.addEventListener)
			element.addEventListener(eventType, handler, capture);
		else if (element.attachEvent)
			element.attachEvent("on" + eventType, handler);
	}
	catch (e) {}
};

Spry.Utils.removeEventListener = function(element, eventType, handler, capture)
{
	try
	{
		element = Spry.$(element);
		if (element.removeEventListener)
			element.removeEventListener(eventType, handler, capture);
		else if (element.detachEvent)
			element.detachEvent("on" + eventType, handler);
	}
	catch (e) {}
};

Spry.Utils.addLoadListener = function(handler)
{
	if (typeof window.addEventListener != 'undefined')
		window.addEventListener('load', handler, false);
	else if (typeof document.addEventListener != 'undefined')
		document.addEventListener('load', handler, false);
	else if (typeof window.attachEvent != 'undefined')
		window.attachEvent('onload', handler);
};

Spry.Utils.eval = function(str)
{

	return eval(str);
};

Spry.Utils.escapeQuotesAndLineBreaks = function(str)
{
	if (str)
	{
		str = str.replace(/\\/g, "\\\\");
		str = str.replace(/["']/g, "\\$&");
		str = str.replace(/\n/g, "\\n");
		str = str.replace(/\r/g, "\\r");
	}
	return str;
};

Spry.Utils.encodeEntities = function(str)
{
	if (str && str.search(/[&<>"]/) != -1)
	{
		str = str.replace(/&/g, "&amp;");
		str = str.replace(/</g, "&lt;");
		str = str.replace(/>/g, "&gt;");
		str = str.replace(/"/g, "&quot;");
	}
	return str
};

Spry.Utils.decodeEntities = function(str)
{
	var d = Spry.Utils.decodeEntities.div;
	if (!d)
	{
		d = document.createElement('div');
		Spry.Utils.decodeEntities.div = d;
		if (!d) return str;
	}
	d.innerHTML = str;
	if (d.childNodes.length == 1 && d.firstChild.nodeType == 3 /* Node.TEXT_NODE */ && d.firstChild.nextSibling == null)
		str = d.firstChild.data;
	else
	{
		str = str.replace(/&lt;/gi, "<");
		str = str.replace(/&gt;/gi, ">");
		str = str.replace(/&quot;/gi, "\"");
		str = str.replace(/&amp;/gi, "&");
	}
	return str;
};

Spry.Utils.fixupIETagAttributes = function(inStr)
{
	var outStr = "";

	var tagStart = inStr.match(/^<[^\s>]+\s*/)[0];
	var tagEnd = inStr.match(/\s*\/?>$/)[0];
	var tagAttrs = inStr.replace(/^<[^\s>]+\s*|\s*\/?>/g, "");

	outStr += tagStart;


	if (tagAttrs)
	{
		var startIndex = 0;
		var endIndex = 0;

		while (startIndex < tagAttrs.length)
		{
			while (tagAttrs.charAt(endIndex) != '=' && endIndex < tagAttrs.length)
				++endIndex;



			if (endIndex >= tagAttrs.length)
			{
				outStr += tagAttrs.substring(startIndex, endIndex);
				break;
			}


			++endIndex;
			outStr += tagAttrs.substring(startIndex, endIndex);
			startIndex = endIndex;

			if (tagAttrs.charAt(endIndex) == '"' || tagAttrs.charAt(endIndex) == "'")
			{
				var savedIndex = endIndex++;
				while (endIndex < tagAttrs.length)
				{
					if (tagAttrs.charAt(endIndex) == tagAttrs.charAt(savedIndex))
					{
						endIndex++;
						break;
					}
					else if (tagAttrs.charAt(endIndex) == "\\")
						endIndex++;
					endIndex++;
				}

				outStr += tagAttrs.substring(startIndex, endIndex);
				startIndex = endIndex;
			}
			else
			{


				outStr += "\"";

				var sIndex = tagAttrs.slice(endIndex).search(/\s/);
				endIndex = (sIndex != -1) ? (endIndex + sIndex) : tagAttrs.length;
				outStr += tagAttrs.slice(startIndex, endIndex);
				outStr += "\"";
				startIndex = endIndex;
			}
		}
	}

	outStr += tagEnd;

	return outStr;
};

Spry.Utils.fixUpIEInnerHTML = function(inStr)
{
	var outStr = "";


	var regexp = new RegExp("<\\!--|<\\!\\[CDATA\\[|<\\w+[^<>]*>|-->|\\]\\](>|\&gt;)", "g");
	var searchStartIndex = 0;
	var skipFixUp = 0;

	while (inStr.length)
	{
		var results = regexp.exec(inStr);
		if (!results || !results[0])
		{
			outStr += inStr.substr(searchStartIndex, inStr.length - searchStartIndex);
			break;
		}

		if (results.index != searchStartIndex)
		{

			outStr += inStr.substr(searchStartIndex, results.index - searchStartIndex);
		}

		if (results[0] == "<!--" || results[0] == "<![CDATA[")
		{
			++skipFixUp;
			outStr += results[0];
		}
		else if (results[0] == "-->" || results[0] == "]]>" || (skipFixUp && results[0] == "]]&gt;"))
		{
			--skipFixUp;
			outStr += results[0];
		}
		else if (!skipFixUp && results[0].charAt(0) == '<')
			outStr += Spry.Utils.fixupIETagAttributes(results[0]);
		else
			outStr += results[0];

		searchStartIndex = regexp.lastIndex;
	}

	return outStr;
};

Spry.Utils.stringToXMLDoc = function(str)
{
	var xmlDoc = null;

	try
	{

		var xmlDOMObj = new ActiveXObject("Microsoft.XMLDOM");
		xmlDOMObj.async = false;
		xmlDOMObj.loadXML(str);
		xmlDoc = xmlDOMObj;
	}
	catch (e)
	{


		try
		{
			var domParser = new DOMParser;
			xmlDoc = domParser.parseFromString(str, 'text/xml');
		}
		catch (e)
		{
			Spry.Debug.reportError("Caught exception in Spry.Utils.stringToXMLDoc(): " + e + "\n");
			xmlDoc = null;
		}
	}

	return xmlDoc;
};

Spry.Utils.serializeObject = function(obj)
{


	var str = "";
	var firstItem = true;

	if (obj == null || obj == undefined)
		return str + obj;

	var objType = typeof obj;

	if (objType == "number" || objType == "boolean")
		str += obj;
	else if (objType == "string")
		str += "\"" + Spry.Utils.escapeQuotesAndLineBreaks(obj) + "\"";
	else if (obj.constructor == Array)
	{
		str += "[";
		for (var i = 0; i < obj.length; i++)
		{
			if (!firstItem)
				str += ", ";
			str += Spry.Utils.serializeObject(obj[i]);
			firstItem = false;
		}
		str += "]";
	}
	else if (objType == "object")
	{
		str += "{";
		for (var p in obj)
		{
			if (!firstItem)
				str += ", ";
			str += "\"" + p + "\": " + Spry.Utils.serializeObject(obj[p]);
			firstItem = false;
		}
		str += "}";
	}
	return str;
};

Spry.Utils.getNodesByFunc = function(root, func)
{
	var nodeStack = new Array;
	var resultArr = new Array;
	var node = root;

	while (node)
	{
		if (func(node))
			resultArr.push(node);

		if (node.hasChildNodes())
		{
			nodeStack.push(node);
			node = node.firstChild;
		}
		else
		{
			if (node == root)
				node = null;
			else
				try { node = node.nextSibling; } catch (e) { node = null; };
		}

		while (!node && nodeStack.length > 0)
		{
			node = nodeStack.pop();
			if (node == root)
				node = null;
			else
				try { node = node.nextSibling; } catch (e) { node = null; }
		}
	}

	if (nodeStack && nodeStack.length > 0)
		Spry.Debug.trace("-- WARNING: Spry.Utils.getNodesByFunc() failed to traverse all nodes!\n");

	return resultArr;
};

Spry.Utils.addClassName = function(ele, className)
{
	ele = Spry.$(ele);
	if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1))
		return;
	ele.className += (ele.className ? " " : "") + className;
};

Spry.Utils.removeClassName = function(ele, className)
{
	ele = Spry.$(ele);
	if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1))
		return;
	ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};

Spry.Utils.getFirstChildWithNodeName = function(node, nodeName)
{
	var child = node.firstChild;

	while (child)
	{
		if (child.nodeName == nodeName)
			return child;
		child = child.nextSibling;
	}

	return null;
};

Spry.Utils.nodeContainsElementNode = function(node)
{
	if (node)
	{
		node = node.firstChild;

		while (node)
		{
			if (node.nodeType == 1 /* Node.ELEMENT_NODE */)
				return true;

			node = node.nextSibling;
		}
	}
	return false;
};

Spry.Utils.getNodeText = function(node)
{
	var txt = "";

	if (!node)
		return;

	try
	{
		var child = node.firstChild;

		while (child)
		{
			try
			{
				if (child.nodeType == 3 /* TEXT_NODE */)
					txt += Spry.Utils.encodeEntities(child.data);
				else if (child.nodeType == 4 /* CDATA_SECTION_NODE */)
					txt += child.data;
			} catch (e) { Spry.Debug.reportError("Spry.Utils.getNodeText() exception caught: " + e + "\n"); }

			child = child.nextSibling;
		}
	}
	catch (e) { Spry.Debug.reportError("Spry.Utils.getNodeText() exception caught: " + e + "\n"); }

	return txt;
};

Spry.Utils.CreateObjectForNode = function(node)
{
	if (!node)
		return null;

	var obj = new Object();
	var i = 0;
	var attr = null;

	try
	{
		for (i = 0; i < node.attributes.length; i++)
		{
			attr = node.attributes[i];
			if (attr && attr.nodeType == 2 /* Node.ATTRIBUTE_NODE */)
				obj["@" + attr.name] = attr.value;
		}
	}
	catch (e)
	{
		Spry.Debug.reportError("Spry.Utils.CreateObjectForNode() caught exception while accessing attributes: " + e + "\n");
	}

	var child = node.firstChild;

	if (child && !child.nextSibling && child.nodeType != 1 /* Node.ELEMENT_NODE */)
	{


		obj[node.nodeName] = Spry.Utils.getNodeText(node);
	}

	while (child)
	{
	

		if (child.nodeType == 1 /* Node.ELEMENT_NODE */)
		{
			if (!Spry.Utils.nodeContainsElementNode(child))
			{
				obj[child.nodeName] = Spry.Utils.getNodeText(child);

	
				try
				{
					var namePrefix = child.nodeName + "/@";

					for (i = 0; i < child.attributes.length; i++)
					{
						attr = child.attributes[i];
						if (attr && attr.nodeType == 2 /* Node.ATTRIBUTE_NODE */)
							obj[namePrefix + attr.name] = attr.value;
					}
				}
				catch (e)
				{
					Spry.Debug.reportError("Spry.Utils.CreateObjectForNode() caught exception while accessing attributes: " + e + "\n");
				}
			}
		}

		child = child.nextSibling;
	}

	return obj;
};

Spry.Utils.getRecordSetFromXMLDoc = function(xmlDoc, path, suppressColumns)
{
	if (!xmlDoc || !path)
		return null;

	var recordSet = new Object();
	recordSet.xmlDoc = xmlDoc;
	recordSet.xmlPath = path;
	recordSet.dataHash = new Object;
	recordSet.data = new Array;
	recordSet.getData = function() { return this.data; };

	var ctx = new ExprContext(xmlDoc);
	var pathExpr = xpathParse(path);
	var e = pathExpr.evaluate(ctx);

	var nodeArray = e.nodeSetValue();

	var isDOMNodeArray = true;

	if (nodeArray && nodeArray.length > 0)
		isDOMNodeArray = nodeArray[0].nodeType != 2 /* Node.ATTRIBUTE_NODE */;

	var nextID = 0;

	for (var i = 0; i < nodeArray.length; i++)
	{
		var rowObj = null;

		if (suppressColumns)
			rowObj = new Object;
		else
		{
			if (isDOMNodeArray)
				rowObj = Spry.Utils.CreateObjectForNode(nodeArray[i]);
			else // Must be a Node.ATTRIBUTE_NODE array.
			{
				rowObj = new Object;
				rowObj["@" + nodeArray[i].name] = nodeArray[i].value;
			}
		}

		if (rowObj)
		{
			rowObj['ds_RowID'] = nextID++;
			rowObj['ds_XMLNode'] = nodeArray[i];
			recordSet.dataHash[rowObj['ds_RowID']] = rowObj;
			recordSet.data.push(rowObj);
		}
	}

	return recordSet;
};

Spry.Utils.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
{
	if (!optionsObj)
		return;

	for (var optionName in optionsObj)
	{
		if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
			continue;
		obj[optionName] = optionsObj[optionName];
	}
};

Spry.Utils.SelectionManager = {};
Spry.Utils.SelectionManager.selectionGroups = new Object;

Spry.Utils.SelectionManager.SelectionGroup = function()
{
	this.selectedElements = new Array;
};

Spry.Utils.SelectionManager.SelectionGroup.prototype.select = function(element, className, multiSelect)
{
	var selObj = null;

	if (!multiSelect)
	{


		this.clearSelection();
	}
	else
	{
	

		for (var i = 0; i < this.selectedElements.length; i++)
		{
			selObj = this.selectedElements[i].element;

			if (selObj.element == element)
			{
				if (selObj.className != className)
				{
					Spry.Utils.removeClassName(element, selObj.className);
					Spry.Utils.addClassName(element, className);
				}
				return;
			}
		}
	}


	selObj = new Object;
	selObj.element = element;
	selObj.className = className;
	this.selectedElements.push(selObj);
	Spry.Utils.addClassName(element, className);
};

Spry.Utils.SelectionManager.SelectionGroup.prototype.unSelect = function(element)
{
	for (var i = 0; i < this.selectedElements.length; i++)
	{
		var selObj = this.selectedElements[i].element;

		if (selObj.element == element)
		{
			Spry.Utils.removeClassName(selObj.element, selObj.className);
			return;
		}
	}
};

Spry.Utils.SelectionManager.SelectionGroup.prototype.clearSelection = function()
{
	var selObj = null;

	do
	{
		selObj = this.selectedElements.shift();
		if (selObj)
			Spry.Utils.removeClassName(selObj.element, selObj.className);
	}
	while (selObj);
};

Spry.Utils.SelectionManager.getSelectionGroup = function(selectionGroupName)
{
	if (!selectionGroupName)
		return null;

	var groupObj = Spry.Utils.SelectionManager.selectionGroups[selectionGroupName];

	if (!groupObj)
	{
		groupObj = new Spry.Utils.SelectionManager.SelectionGroup();
		Spry.Utils.SelectionManager.selectionGroups[selectionGroupName] = groupObj;
	}

	return groupObj;
};

Spry.Utils.SelectionManager.select = function(selectionGroupName, element, className, multiSelect)
{
	var groupObj = Spry.Utils.SelectionManager.getSelectionGroup(selectionGroupName);

	if (!groupObj)
		return;

	groupObj.select(element, className, multiSelect);
};

Spry.Utils.SelectionManager.unSelect = function(selectionGroupName, element)
{
	var groupObj = Spry.Utils.SelectionManager.getSelectionGroup(selectionGroupName);

	if (!groupObj)
		return;

	groupObj.unSelect(element, className);
};

Spry.Utils.SelectionManager.clearSelection = function(selectionGroupName)
{
	var groupObj = Spry.Utils.SelectionManager.getSelectionGroup(selectionGroupName);

	if (!groupObj)
		return;

	groupObj.clearSelection();
};



Spry.$ = function(element)
{
	if (arguments.length > 1)
	{
		for (var i = 0, elements = [], length = arguments.length; i < length; i++)
			elements.push(Spry.$(arguments[i]));
		return elements;
	}
	if (typeof element == 'string')
		element = document.getElementById(element);
	return element;
};

Spry.Utils.Notifier = function()
{
	this.observers = [];
	this.suppressNotifications = 0;
};

Spry.Utils.Notifier.prototype.addObserver = function(observer)
{
	if (!observer)
		return;

	var len = this.observers.length;
	for (var i = 0; i < len; i++)
	{
		if (this.observers[i] == observer)
			return;
	}
	this.observers[len] = observer;
};

Spry.Utils.Notifier.prototype.removeObserver = function(observer)
{
	if (!observer)
		return;

	for (var i = 0; i < this.observers.length; i++)
	{
		if (this.observers[i] == observer)
		{
			this.observers.splice(i, 1);
			break;
		}
	}
};

Spry.Utils.Notifier.prototype.notifyObservers = function(methodName, data)
{
	if (!methodName)
		return;

	if (!this.suppressNotifications)
	{
		var len = this.observers.length;
		for (var i = 0; i < len; i++)
		{
			var obs = this.observers[i];
			if (obs)
			{
				if (typeof obs == "function")
					obs(methodName, this, data);
				else if (obs[methodName])
					obs[methodName](this, data);
			}
		}
	}
};

Spry.Utils.Notifier.prototype.enableNotifications = function()
{
	if (--this.suppressNotifications < 0)
	{
		this.suppressNotifications = 0;
		Spry.Debug.reportError("Unbalanced enableNotifications() call!\n");
	}
};

Spry.Utils.Notifier.prototype.disableNotifications = function()
{
	++this.suppressNotifications;
};



Spry.Data = {};
Spry.Data.regionsArray = {};

Spry.Data.initRegions = function(rootNode)
{
	if (!rootNode)
		rootNode = document.body;

	var lastRegionFound = null;

	var regions = Spry.Utils.getNodesByFunc(rootNode, function(node)
	{
		try
		{
			if (node.nodeType != 1 /* Node.ELEMENT_NODE */)
				return false;


			var attrName = "spry:region";
			var attr = node.attributes.getNamedItem(attrName);
			if (!attr)
			{
				attrName = "spry:detailregion";
				attr = node.attributes.getNamedItem(attrName);
			}
			if (attr)
			{
				if (lastRegionFound)
				{
					var parent = node.parentNode;
					while (parent)
					{
						if (parent == lastRegionFound)
						{
							Spry.Debug.reportError("Found a nested " + attrName + " in the following markup. Nested regions are currently not supported.<br/><pre>" + Spry.Utils.encodeEntities(parent.innerHTML) + "</pre>");
							return false;
						}
						parent = parent.parentNode;
					}
				}

				if (attr.value)
				{
					attr = node.attributes.getNamedItem("id");
					if (!attr || !attr.value)
					{
						// The node is missing an id attribute so add one.
						node.setAttribute("id", "spryregion" + (++Spry.Data.initRegions.nextUniqueRegionID));
					}

					lastRegionFound = node;
					return true;
				}
				else
					Spry.Debug.reportError(attrName + " attributes require one or more data set names as values!");
			}
		}
		catch(e) {}
		return false;
	});

	var name, dataSets, i;

	for (i = 0; i < regions.length; i++)
	{
		var rgn = regions[i];

		var isDetailRegion = false;

		// Get the region name.
		name = rgn.attributes.getNamedItem("id").value;

		attr = rgn.attributes.getNamedItem("spry:region");
		if (!attr)
		{
			attr = rgn.attributes.getNamedItem("spry:detailregion");
			isDetailRegion = true;
		}

		if (!attr.value)
		{
			Spry.Debug.reportError("spry:region and spry:detailregion attributes require one or more data set names as values!");
			continue;
		}

		rgn.attributes.removeNamedItem(attr.nodeName);

		Spry.Utils.removeClassName(rgn, Spry.Data.Region.hiddenRegionClassName);
		dataSets = Spry.Data.Region.strToDataSetsArray(attr.value);

		if (!dataSets.length)
		{
			Spry.Debug.reportError("spry:region or spry:detailregion attribute has no data set!");
			continue;
		}

		var hasBehaviorAttributes = false;
		var hasSpryContent = false;
		var dataStr = "";

		var parent = null;
		var regionStates = {};
		var regionStateMap = {};

		attr = rgn.attributes.getNamedItem("spry:readystate");
		if (attr && attr.value)
			regionStateMap["ready"] = attr.value;
		attr = rgn.attributes.getNamedItem("spry:errorstate");
		if (attr && attr.value)
			regionStateMap["error"] = attr.value;
		attr = rgn.attributes.getNamedItem("spry:loadingstate");
		if (attr && attr.value)
			regionStateMap["loading"] = attr.value;
		attr = rgn.attributes.getNamedItem("spry:expiredstate");
		if (attr && attr.value)
			regionStateMap["expired"] = attr.value;


		var piRegions = Spry.Utils.getNodesByFunc(rgn, function(node)
		{
			try
			{
				if (node.nodeType == 1 /* ELEMENT_NODE */)
				{
					var attributes = node.attributes;
					var numPI = Spry.Data.Region.PI.orderedInstructions.length;
					var lastStartComment = null;
					var lastEndComment = null;

					for (var i = 0; i < numPI; i++)
					{
						var piName = Spry.Data.Region.PI.orderedInstructions[i];
						var attr = attributes.getNamedItem(piName);
						if (!attr)
							continue;

						var piDesc = Spry.Data.Region.PI.instructions[piName];
						var childrenOnly = (node == rgn) ? true : piDesc.childrenOnly;
						var openTag = piDesc.getOpenTag(node, piName);
						var closeTag = piDesc.getCloseTag(node, piName);

						if (childrenOnly)
						{
								var oComment = document.createComment(openTag);
								var cComment = document.createComment(closeTag)

								if (!lastStartComment)
									node.insertBefore(oComment, node.firstChild);
								else
									node.insertBefore(oComment, lastStartComment.nextSibling);
								lastStartComment = oComment;

								if (!lastEndComment)
									node.appendChild(cComment);
								else
									node.insertBefore(cComment, lastEndComment);
								lastEndComment = cComment;
						}
						else
						{
							var parent = node.parentNode;
							parent.insertBefore(document.createComment(openTag), node);
							parent.insertBefore(document.createComment(closeTag), node.nextSibling);
						}

						if (piName == "spry:state")
							regionStates[attr.value] = true;

						node.removeAttribute(piName);
					}

					if (Spry.Data.Region.enableBehaviorAttributes)
					{
						var bAttrs = Spry.Data.Region.behaviorAttrs;
						for (var behaviorAttrName in bAttrs)
						{
							var bAttr = attributes.getNamedItem(behaviorAttrName);
							if (bAttr)
							{
								hasBehaviorAttributes = true;
								if (bAttrs[behaviorAttrName].setup)
									bAttrs[behaviorAttrName].setup(node, bAttr.value);
							}
						}
					}
				}
			}
			catch(e) {}
			return false;
		});

		dataStr = rgn.innerHTML;

		if (window.ActiveXObject && !Spry.Data.Region.disableIEInnerHTMLFixUp && dataStr.search(/=\{/) != -1)
		{
			if (Spry.Data.Region.debug)
				Spry.Debug.trace("<hr />Performing IE innerHTML fix up of Region: " + name + "<br /><br />" + Spry.Utils.encodeEntities(dataStr));

			dataStr = Spry.Utils.fixUpIEInnerHTML(dataStr);
		}

		if (Spry.Data.Region.debug)
			Spry.Debug.trace("<hr />Region template markup for '" + name + "':<br /><br />" + Spry.Utils.encodeEntities(dataStr));

		if (!hasSpryContent)
		{
			rgn.innerHTML = "";
		}

		var region = new Spry.Data.Region(rgn, name, isDetailRegion, dataStr, dataSets, regionStates, regionStateMap, hasBehaviorAttributes);
		Spry.Data.regionsArray[region.name] = region;
	}

	Spry.Data.updateAllRegions();
};

Spry.Data.initRegions.nextUniqueRegionID = 0;

Spry.Data.updateRegion = function(regionName)
{
	if (!regionName || !Spry.Data.regionsArray || !Spry.Data.regionsArray[regionName])
		return;

	try { Spry.Data.regionsArray[regionName].updateContent(); }
	catch(e) { Spry.Debug.reportError("Spry.Data.updateRegion(" + regionName + ") caught an exception: " + e + "\n"); }
};

Spry.Data.getRegion = function(regionName)
{
	return Spry.Data.regionsArray[regionName];
};


Spry.Data.updateAllRegions = function()
{
	if (!Spry.Data.regionsArray)
		return;

	for (var regionName in Spry.Data.regionsArray)
		Spry.Data.updateRegion(regionName);
};



Spry.Data.DataSet = function(options)
{
	Spry.Utils.Notifier.call(this);

	this.name = "";
	this.internalID = Spry.Data.DataSet.nextDataSetID++;
	this.curRowID = 0;
	this.data = [];
	this.unfilteredData = null;
	this.dataHash = {};
	this.columnTypes = {};
	this.filterFunc = null;		// non-destructive filter function
	this.filterDataFunc = null;	// destructive filter function

	this.distinctOnLoad = false;
	this.distinctFieldsOnLoad = null;
	this.sortOnLoad = null;
	this.sortOrderOnLoad = "ascending";
	this.keepSorted = false;

	this.dataWasLoaded = false;
	this.pendingRequest = null;

	this.lastSortColumns = [];
	this.lastSortOrder = "";

	this.loadIntervalID = 0;

	Spry.Utils.setOptions(this, options);
};

Spry.Data.DataSet.prototype = new Spry.Utils.Notifier();
Spry.Data.DataSet.prototype.constructor = Spry.Data.DataSet;

Spry.Data.DataSet.prototype.getData = function(unfiltered)
{
	return (unfiltered && this.unfilteredData) ? this.unfilteredData : this.data;
};

Spry.Data.DataSet.prototype.getUnfilteredData = function()
{
	// XXX: Deprecated.
	return this.getData(true);
};

Spry.Data.DataSet.prototype.getLoadDataRequestIsPending = function()
{
	return this.pendingRequest != null;
};

Spry.Data.DataSet.prototype.getDataWasLoaded = function()
{
	return this.dataWasLoaded;
};

Spry.Data.DataSet.prototype.setDataFromArray = function(arr, fireSyncLoad)
{
	this.notifyObservers("onPreLoad");

	this.unfilteredData = null;
	this.filteredData = null;
	this.data = [];
	this.dataHash = {};

	var arrLen = arr.length;

	for (var i = 0; i < arrLen; i++)
	{
		var row = arr[i];
		if (row.ds_RowID == undefined)
			row.ds_RowID = i;
		this.dataHash[row.ds_RowID] = row;
		this.data.push(row);
	}

	this.loadData(fireSyncLoad);
};

Spry.Data.DataSet.prototype.loadData = function(syncLoad)
{
	
	var self = this;

	this.pendingRequest = new Object;
	this.dataWasLoaded = false;

	var loadCallbackFunc = function()
	{
		self.pendingRequest = null;
		self.dataWasLoaded = true;

		self.applyColumnTypes();
		self.filterAndSortData();

		self.notifyObservers("onPostLoad");
		self.notifyObservers("onDataChanged");
	};

	if (syncLoad)
		loadCallbackFunc();
	else
		this.pendingRequest.timer = setTimeout(loadCallbackFunc, 0);
};


Spry.Data.DataSet.prototype.filterAndSortData = function()
{

	if (this.filterDataFunc)
		this.filterData(this.filterDataFunc, true);

	if (this.distinctOnLoad)
		this.distinct(this.distinctFieldsOnLoad);


	if (this.keepSorted && this.getSortColumn())
		this.sort(this.lastSortColumns, this.lastSortOrder)
	else if (this.sortOnLoad)
		this.sort(this.sortOnLoad, this.sortOrderOnLoad);

	// If there is a view filter installed, run it.

	if (this.filterFunc)
		this.filter(this.filterFunc, true);

	// The default "current" row is the first row of the data set.
	if (this.data && this.data.length > 0)
		this.curRowID = this.data[0]['ds_RowID'];
	else
		this.curRowID = 0;
};

Spry.Data.DataSet.prototype.cancelLoadData = function()
{
	if (this.pendingRequest && this.pendingRequest.timer)
		clearTimeout(this.pendingRequest.timer);
	this.pendingRequest = null;
};

Spry.Data.DataSet.prototype.getRowCount = function(unfiltered)
{
	var rows = this.getData(unfiltered);
	return rows ? rows.length : 0;
};

Spry.Data.DataSet.prototype.getRowByID = function(rowID)
{
	if (!this.data)
		return null;
	return this.dataHash[rowID];
};

Spry.Data.DataSet.prototype.getRowByRowNumber = function(rowNumber, unfiltered)
{
	var rows = this.getData(unfiltered);
	if (rows && rowNumber >= 0 && rowNumber < rows.length)
		return rows[rowNumber];
	return null;
};

Spry.Data.DataSet.prototype.getCurrentRow = function()
{
	return this.getRowByID(this.curRowID);
};

Spry.Data.DataSet.prototype.setCurrentRow = function(rowID)
{
	if (this.curRowID == rowID)
		return;

	var nData = { oldRowID: this.curRowID, newRowID: rowID };
	this.curRowID = rowID;
	this.notifyObservers("onCurrentRowChanged", nData);
};

Spry.Data.DataSet.prototype.getRowNumber = function(row, unfiltered)
{
	if (row)
	{
		var rows = this.getData(unfiltered);
		if (rows && rows.length)
		{
			var numRows = rows.length;
			for (var i = 0; i < numRows; i++)
			{
				if (rows[i] == row)
					return i;
			}
		}
	}
	return -1;
};

Spry.Data.DataSet.prototype.getCurrentRowNumber = function()
{
	return this.getRowNumber(this.getCurrentRow());
};

Spry.Data.DataSet.prototype.getCurrentRowID = function()
{
	return this.curRowID;
};

Spry.Data.DataSet.prototype.setCurrentRowNumber = function(rowNumber)
{
	if (!this.data || rowNumber >= this.data.length)
	{
		Spry.Debug.trace("Invalid row number: " + rowNumber + "\n");
		return;
	}

	var rowID = this.data[rowNumber]["ds_RowID"];

	if (rowID == undefined || this.curRowID == rowID)
		return;

	this.setCurrentRow(rowID);
};

Spry.Data.DataSet.prototype.findRowsWithColumnValues = function(valueObj, firstMatchOnly, unfiltered)
{
	var results = [];
	var rows = this.getData(unfiltered);
	if (rows)
	{
		var numRows = rows.length;
		for (var i = 0; i < numRows; i++)
		{
			var row = rows[i];
			var matched = true;

			for (var colName in valueObj)
			{
				if (valueObj[colName] != row[colName])
				{
					matched = false;
					break;
				}
			}

			if (matched)
			{
				if (firstMatchOnly)
					return row;
				results.push(row);
			}
		}
	}

	return firstMatchOnly ? null : results;
};

Spry.Data.DataSet.prototype.setColumnType = function(columnNames, columnType)
{
	if (columnNames)
	{
		if (typeof columnNames == "string")
			columnNames = [ columnNames ];
		for (var i = 0; i < columnNames.length; i++)
			this.columnTypes[columnNames[i]] = columnType;
	}
};

Spry.Data.DataSet.prototype.getColumnType = function(columnName)
{
	if (this.columnTypes[columnName])
		return this.columnTypes[columnName];
	return "string";
};

Spry.Data.DataSet.prototype.applyColumnTypes = function()
{
	var rows = this.getData(true);
	var numRows = rows.length;
	var colNames = [];

	if (numRows < 1)
		return;

	for (var cname in this.columnTypes)
	{
		var ctype = this.columnTypes[cname];
		if (ctype != "string")
		{
			for (var i = 0; i < numRows; i++)
			{
				var row = rows[i];
				var val = row[cname];
				if (val != undefined)
				{
					if (ctype == "number")
						row[cname] = new Number(val);
					else if (ctype == "html")
						row[cname] = Spry.Utils.decodeEntities(val);
				}
			}
		}
	}
};

Spry.Data.DataSet.prototype.distinct = function(columnNames)
{
	if (this.data)
	{
		var oldData = this.data;
		this.data = [];
		this.dataHash = {};
		var dataChanged = false;

		var alreadySeenHash = {};
		var i = 0;

		var keys = [];

		if (typeof columnNames == "string")
			keys = [columnNames];
		else if (columnNames)
			keys = columnNames;
		else
			for (var recField in oldData[0])
				keys[i++] = recField;

		for (var i = 0; i < oldData.length; i++)
		{
			var rec = oldData[i];
			var hashStr = "";
			for (var j=0; j < keys.length; j++)
			{
				recField = keys[j];
				if (recField != "ds_RowID")
				{
					if (hashStr)
						hashStr += ",";
					hashStr += recField + ":" + "\"" + rec[recField] + "\"";
				}
			}
			if (!alreadySeenHash[hashStr])
			{
				this.data.push(rec);
				this.dataHash[rec['ds_RowID']] = rec;
				alreadySeenHash[hashStr] = true;
			}
			else
				dataChanged = true;
		}
		if (dataChanged)
			this.notifyObservers('onDataChanged');
	}
};

Spry.Data.DataSet.prototype.getSortColumn = function() {
	return (this.lastSortColumns && this.lastSortColumns.length > 0) ? this.lastSortColumns[0] : "";
};

Spry.Data.DataSet.prototype.getSortOrder = function() {
	return this.lastSortOrder ? this.lastSortOrder : "";
};

Spry.Data.DataSet.prototype.sort = function(columnNames, sortOrder)
{


	if (!columnNames)
		return;


	if (typeof columnNames == "string")
		columnNames = [ columnNames, "ds_RowID" ];
	else if (columnNames.length < 2 && columnNames[0] != "ds_RowID")
		columnNames.push("ds_RowID");

	if (!sortOrder)
		sortOrder = "toggle";

	if (sortOrder == "toggle")
	{
		if (this.lastSortColumns.length > 0 && this.lastSortColumns[0] == columnNames[0] && this.lastSortOrder == "ascending")
			sortOrder = "descending";
		else
			sortOrder = "ascending";
	}

	if (sortOrder != "ascending" && sortOrder != "descending")
	{
		Spry.Debug.reportError("Invalid sort order type specified: " + sortOrder + "\n");
		return;
	}

	var nData = {
		oldSortColumns: this.lastSortColumns,
		oldSortOrder: this.lastSortOrder,
		newSortColumns: columnNames,
		newSortOrder: sortOrder
	};
	this.notifyObservers("onPreSort", nData);

	var cname = columnNames[columnNames.length - 1];
	var sortfunc = Spry.Data.DataSet.prototype.sort.getSortFunc(cname, this.getColumnType(cname), sortOrder);

	for (var i = columnNames.length - 2; i >= 0; i--)
	{
		cname = columnNames[i];
		sortfunc = Spry.Data.DataSet.prototype.sort.buildSecondarySortFunc(Spry.Data.DataSet.prototype.sort.getSortFunc(cname, this.getColumnType(cname), sortOrder), sortfunc);
	}

	if (this.unfilteredData)
	{
		this.unfilteredData.sort(sortfunc);
		if (this.filterFunc)
			this.filter(this.filterFunc, true);
	}
	else
		this.data.sort(sortfunc);

	this.lastSortColumns = columnNames.slice(0); // Copy the array.
	this.lastSortOrder = sortOrder;

	this.notifyObservers("onPostSort", nData);
};

Spry.Data.DataSet.prototype.sort.getSortFunc = function(prop, type, order)
{
	var sortfunc = null;
	if (type == "number")
	{
		if (order == "ascending")
			sortfunc = function(a, b)
			{
				a = a[prop]; b = b[prop];
				if (a == undefined || b == undefined)
					return (a == b) ? 0 : (a ? 1 : -1);
				return a-b;
			};
		else // order == "descending"
			sortfunc = function(a, b)
			{
				a = a[prop]; b = b[prop];
				if (a == undefined || b == undefined)
					return (a == b) ? 0 : (a ? -1 : 1);
				return b-a;
			};
	}
	else if (type == "date")
	{
		if (order == "ascending")
			sortfunc = function(a, b)
			{
				var dA = a[prop];
				var dB = b[prop];
				dA = dA ? (new Date(dA)) : 0;
				dB = dB ? (new Date(dB)) : 0;
				return dA - dB;
			};
		else // order == "descending"
			sortfunc = function(a, b)
			{
				var dA = a[prop];
				var dB = b[prop];
				dA = dA ? (new Date(dA)) : 0;
				dB = dB ? (new Date(dB)) : 0;
				return dB - dA;
			};
	}
	else // type == "string" || type == "html"
	{
		if (order == "ascending")
			sortfunc = function(a, b){
				a = a[prop];
				b = b[prop];
				if (a == undefined || b == undefined)
					return (a == b) ? 0 : (a ? 1 : -1);
				var tA = a.toString();
				var tB = b.toString();
				var tA_l = tA.toLowerCase();
				var tB_l = tB.toLowerCase();
				var min_len = tA.length > tB.length ? tB.length : tA.length;

				for (var i=0; i < min_len; i++)
				{
					var a_l_c = tA_l.charAt(i);
					var b_l_c = tB_l.charAt(i);
					var a_c = tA.charAt(i);
					var b_c = tB.charAt(i);
					if (a_l_c > b_l_c)
						return 1;
					else if (a_l_c < b_l_c)
						return -1;
					else if (a_c > b_c)
						return 1;
					else if (a_c < b_c)
						return -1;
				}
				if(tA.length == tB.length)
					return 0;
				else if (tA.length > tB.length)
					return 1;
				return -1;
			};
		else // order == "descending"
			sortfunc = function(a, b){
				a = a[prop];
				b = b[prop];
				if (a == undefined || b == undefined)
					return (a == b) ? 0 : (a ? -1 : 1);
				var tA = a.toString();
				var tB = b.toString();
				var tA_l = tA.toLowerCase();
				var tB_l = tB.toLowerCase();
				var min_len = tA.length > tB.length ? tB.length : tA.length;
				for (var i=0; i < min_len; i++)
				{
					var a_l_c = tA_l.charAt(i);
					var b_l_c = tB_l.charAt(i);
					var a_c = tA.charAt(i);
					var b_c = tB.charAt(i);
					if (a_l_c > b_l_c)
						return -1;
					else if (a_l_c < b_l_c)
						return 1;
					else if (a_c > b_c)
						return -1;
					else if (a_c < b_c)
						return 1;
				}
				if(tA.length == tB.length)
					return 0;
				else if (tA.length > tB.length)
					return -1;
				return 1;
			};
	}

	return sortfunc;
};

Spry.Data.DataSet.prototype.sort.buildSecondarySortFunc = function(funcA, funcB)
{
	return function(a, b)
	{
		var ret = funcA(a, b);
		if (ret == 0)
			ret = funcB(a, b);
		return ret;
	};
};

Spry.Data.DataSet.prototype.filterData = function(filterFunc, filterOnly)
{
	// This is a destructive filter function.

	var dataChanged = false;

	if (!filterFunc)
	{
		// Caller wants to remove the filter.

		this.filterDataFunc = null;
		dataChanged = true;
	}
	else
	{
		this.filterDataFunc = filterFunc;

		if (this.dataWasLoaded && ((this.unfilteredData && this.unfilteredData.length) || (this.data && this.data.length)))
		{
			if (this.unfilteredData)
			{
				this.data = this.unfilteredData;
				this.unfilteredData = null;
			}

			var oldData = this.data;
			this.data = [];
			this.dataHash = {};

			for (var i = 0; i < oldData.length; i++)
			{
				var newRow = filterFunc(this, oldData[i], i);
				if (newRow)
				{
					this.data.push(newRow);
					this.dataHash[newRow["ds_RowID"]] = newRow;
				}
			}

			dataChanged = true;
		}
	}

	if (dataChanged)
	{
		if (!filterOnly)
		{
			this.disableNotifications();
			if (this.filterFunc)
				this.filter(this.filterFunc, true);
			this.enableNotifications();
		}

		this.notifyObservers("onDataChanged");
	}
};

Spry.Data.DataSet.prototype.filter = function(filterFunc, filterOnly)
{
	// This is a non-destructive filter function.

	var dataChanged = false;

	if (!filterFunc)
	{
		if (this.filterFunc && this.unfilteredData)
		{
			// Caller wants to remove the filter. Restore the unfiltered
			// data and trigger a data changed notification.

			this.data = this.unfilteredData;
			this.unfilteredData = null;
			this.filterFunc = null;
			dataChanged = true;
		}
	}
	else
	{
		this.filterFunc = filterFunc;

		if (this.dataWasLoaded && (this.unfilteredData || (this.data && this.data.length)))
		{
			if (!this.unfilteredData)
				this.unfilteredData = this.data;

			var udata = this.unfilteredData;
			this.data = [];

			for (var i = 0; i < udata.length; i++)
			{
				var newRow = filterFunc(this, udata[i], i);

				if (newRow)
					this.data.push(newRow);
			}

			dataChanged = true;
		}
	}

	if (dataChanged)
		this.notifyObservers("onDataChanged");
};

Spry.Data.DataSet.prototype.startLoadInterval = function(interval)
{
	this.stopLoadInterval();
	if (interval > 0)
	{
		var self = this;
		this.loadInterval = interval;
		this.loadIntervalID = setInterval(function() { self.loadData(); }, interval);
	}
};

Spry.Data.DataSet.prototype.stopLoadInterval = function()
{
	if (this.loadIntervalID)
		clearInterval(this.loadIntervalID);
	this.loadInterval = 0;
	this.loadIntervalID = null;
};

Spry.Data.DataSet.nextDataSetID = 0;


Spry.Data.HTTPSourceDataSet = function(dataSetURL, dataSetOptions)
{
	

	Spry.Data.DataSet.call(this);

	// HTTPSourceDataSet Properties:

	this.url = dataSetURL;
	this.dataSetsForDataRefStrings = new Array;
	this.hasDataRefStrings = false;
	this.useCache = true;

	this.setRequestInfo(dataSetOptions, true);

	Spry.Utils.setOptions(this, dataSetOptions, true);

	this.recalculateDataSetDependencies();

	if (this.loadInterval > 0)
		this.startLoadInterval(this.loadInterval);
}; // End of Spry.Data.HTTPSourceDataSet() constructor.

Spry.Data.HTTPSourceDataSet.prototype = new Spry.Data.DataSet();
Spry.Data.HTTPSourceDataSet.prototype.constructor = Spry.Data.HTTPSourceDataSet;

Spry.Data.HTTPSourceDataSet.prototype.setRequestInfo = function(requestInfo, undefineRequestProps)
{


	this.requestInfo = new Spry.Utils.loadURL.Request();
	this.requestInfo.extractRequestOptions(requestInfo, undefineRequestProps);

	if (this.requestInfo.method == "POST")
	{
		if (!this.requestInfo.headers)
			this.requestInfo.headers = {};
		if (!this.requestInfo.headers['Content-Type'])
			this.requestInfo.headers['Content-Type'] = "application/x-www-form-urlencoded; charset=UTF-8";
	}
};

Spry.Data.HTTPSourceDataSet.prototype.recalculateDataSetDependencies = function()
{
	this.hasDataRefStrings = false;

	// Clear all old callbacks that may have been registered.

	var i = 0;
	for (i = 0; i < this.dataSetsForDataRefStrings.length; i++)
	{
		var ds = this.dataSetsForDataRefStrings[i];
		if (ds)
			ds.removeObserver(this);
	}


	this.dataSetsForDataRefStrings = new Array();

	var regionStrs = this.getDataRefStrings();

	var dsCount = 0;

	for (var n = 0; n < regionStrs.length; n++)
	{
		var tokens = Spry.Data.Region.getTokensFromStr(regionStrs[n]);

		for (i = 0; tokens && i < tokens.length; i++)
		{
			if (tokens[i].search(/{[^}:]+::[^}]+}/) != -1)
			{
				var dsName = tokens[i].replace(/^\{|::.*\}/g, "");
				var ds = null;
				if (!this.dataSetsForDataRefStrings[dsName])
				{
					try { ds = eval(dsName); } catch (e) { ds = null; }

					if (dsName && ds)
					{
						// The dataSetsForDataRefStrings array serves as both an
						// array of data sets and a hash lookup by name.

						this.dataSetsForDataRefStrings[dsName] = ds;
						this.dataSetsForDataRefStrings[dsCount++] = ds;
						this.hasDataRefStrings = true;
					}
				}
			}
		}
	}

	// Set up observers on any data sets our URL depends on.

	for (i = 0; i < this.dataSetsForDataRefStrings.length; i++)
	{
		var ds = this.dataSetsForDataRefStrings[i];
		ds.addObserver(this);
	}
};

Spry.Data.HTTPSourceDataSet.prototype.getDataRefStrings = function()
{
	var strArr = [];
	if (this.url) strArr.push(this.url);
	if (this.requestInfo && this.requestInfo.postData) strArr.push(this.requestInfo.postData);
	return strArr;
};

Spry.Data.HTTPSourceDataSet.prototype.attemptLoadData = function()
{
	// We only want to trigger a load when all of our data sets have data!
	for (var i = 0; i < this.dataSetsForDataRefStrings.length; i++)
	{
		var ds = this.dataSetsForDataRefStrings[i];
		if (ds.getLoadDataRequestIsPending() || !ds.getDataWasLoaded())
			return;
	}

	this.loadData();
};

Spry.Data.HTTPSourceDataSet.prototype.onCurrentRowChanged = function(ds, data)
{
	this.attemptLoadData();
};

Spry.Data.HTTPSourceDataSet.prototype.onPostSort = function(ds, data)
{
	this.attemptLoadData();
};

Spry.Data.HTTPSourceDataSet.prototype.onDataChanged = function(ds, data)
{
	this.attemptLoadData();
};

Spry.Data.HTTPSourceDataSet.prototype.loadData = function()
{
	if (!this.url)
		return;

	this.cancelLoadData();

	var url = this.url;
	var postData = this.requestInfo.postData;

	if (this.hasDataRefStrings)
	{
		var allDataSetsReady = true;

		for (var i = 0; i < this.dataSetsForDataRefStrings.length; i++)
		{
			var ds = this.dataSetsForDataRefStrings[i];
			if (ds.getLoadDataRequestIsPending())
				allDataSetsReady = false;
			else if (!ds.getDataWasLoaded())
			{
				// Kick off the load of this data set!
				ds.loadData();
				allDataSetsReady = false;
			}
		}

		// If our data sets aren't ready, just return. We'll
		// get called back to load our data when they are all
		// done.

		if (!allDataSetsReady)
			return;

		url = Spry.Data.Region.processDataRefString(null, this.url, this.dataSetsForDataRefStrings);
		if (!url)
			return;

		if (postData && (typeof postData) == "string")
			postData = Spry.Data.Region.processDataRefString(null, postData, this.dataSetsForDataRefStrings);
	}

	this.notifyObservers("onPreLoad");

	this.data = null;
	this.dataWasLoaded = false;
	this.unfilteredData = null;
	this.dataHash = null;
	this.curRowID = 0;

	var req = this.requestInfo.clone();
	req.url = url;
	req.postData = postData;

	this.pendingRequest = new Object;
	this.pendingRequest.data = Spry.Data.HTTPSourceDataSet.LoadManager.loadData(req, this, this.useCache);
};

Spry.Data.HTTPSourceDataSet.prototype.cancelLoadData = function()
{
	if (this.pendingRequest)
	{
		Spry.Data.HTTPSourceDataSet.LoadManager.cancelLoadData(this.pendingRequest.data, this);
		this.pendingRequest = null;
	}
};

Spry.Data.HTTPSourceDataSet.prototype.getURL = function() { return this.url; };
Spry.Data.HTTPSourceDataSet.prototype.setURL = function(url, requestOptions)
{
	if (this.url == url)
	{
	
		if (!requestOptions || (this.requestInfo.method == requestOptions.method && (requestOptions.method != "POST" || this.requestInfo.postData == requestOptions.postData)))
			return;
	}

	this.url = url;

	this.setRequestInfo(requestOptions);

	this.cancelLoadData();
	this.recalculateDataSetDependencies();
	this.dataWasLoaded = false;
};

Spry.Data.HTTPSourceDataSet.prototype.setDataFromDoc = function(rawDataDoc)
{
	this.pendingRequest = null;

	this.loadDataIntoDataSet(rawDataDoc);
	this.applyColumnTypes();
	this.filterAndSortData();

	this.notifyObservers("onPostLoad");
	this.notifyObservers("onDataChanged");
};

Spry.Data.HTTPSourceDataSet.prototype.loadDataIntoDataSet = function(rawDataDoc)
{

	this.dataHash = new Object;
	this.data = new Array;
	this.dataWasLoaded = true;
};

Spry.Data.HTTPSourceDataSet.prototype.xhRequestProcessor = function(xhRequest)
{

	var resp = xhRequest.responseText;

	if (xhRequest.status == 200 || xhRequest.status == 0)
		return resp;
	return null;
};

Spry.Data.HTTPSourceDataSet.prototype.sessionExpiredChecker = function(req)
{
	if (req.xhRequest.responseText == 'session expired')
		return true;
	return false;
};

Spry.Data.HTTPSourceDataSet.prototype.setSessionExpiredChecker = function(checker)
{
	this.sessionExpiredChecker = checker;
};


Spry.Data.HTTPSourceDataSet.prototype.onRequestResponse = function(cachedRequest, req)
{
	this.setDataFromDoc(cachedRequest.rawData);
};

Spry.Data.HTTPSourceDataSet.prototype.onRequestError = function(cachedRequest, req)
{
	this.notifyObservers("onLoadError", req);
	// Spry.Debug.reportError("Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.loadDataCallback(" + req.xhRequest.status + ") failed to load: " + req.url + "\n");
};

Spry.Data.HTTPSourceDataSet.prototype.onRequestSessionExpired = function(cachedRequest, req)
{
	this.notifyObservers("onSessionExpired", req);
	//Spry.Debug.reportError("Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.loadDataCallback(" + req.xhRequest.status + ") failed to load: " + req.url + "\n");
};


Spry.Data.HTTPSourceDataSet.LoadManager = {};
Spry.Data.HTTPSourceDataSet.LoadManager.cache = [];

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest = function(reqInfo, xhRequestProcessor, sessionExpiredChecker)
{
	Spry.Utils.Notifier.call(this);

	this.reqInfo = reqInfo;
	this.rawData = null;
	this.timer = null;
	this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.NOT_LOADED;
	this.xhRequestProcessor = xhRequestProcessor;
	this.sessionExpiredChecker = sessionExpiredChecker;
};

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.prototype = new Spry.Utils.Notifier();
Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.prototype.constructor = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest;

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.NOT_LOADED      = 1;
Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_REQUESTED  = 2;
Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_FAILED     = 3;
Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_SUCCESSFUL = 4;

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.prototype.loadDataCallback = function(req)
{
	if (req.xhRequest.readyState != 4)
		return;

	var rawData = null;
	if (this.xhRequestProcessor) rawData = this.xhRequestProcessor(req.xhRequest);

	if (this.sessionExpiredChecker)
	{
		Spry.Utils.setOptions(req, {'rawData': rawData}, false);
		if (this.sessionExpiredChecker(req))
		{
			this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_FAILED;
			this.notifyObservers("onRequestSessionExpired", req);
			this.observers.length = 0;
			return;
		}
	}

	if (!rawData)
	{
		this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_FAILED;
		this.notifyObservers("onRequestError", req);
		this.observers.length = 0; // Clear the observers list.
		return;
	}

	this.rawData = rawData;
	this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_SUCCESSFUL;

	// Notify all of the cached request's observers!
	this.notifyObservers("onRequestResponse", req);

	// Clear the observers list.
	this.observers.length = 0;
};

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.prototype.loadData = function()
{

	var self = this;
	this.cancelLoadData();
	this.rawData = null;
	this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_REQUESTED;

	var reqInfo = this.reqInfo.clone();
	reqInfo.successCallback = function(req) { self.loadDataCallback(req); };
	reqInfo.errorCallback = reqInfo.successCallback;

	this.timer = setTimeout(function()
	{
		self.timer = null;
		Spry.Utils.loadURL(reqInfo.method, reqInfo.url, reqInfo.async, reqInfo.successCallback, reqInfo);
	}, 0);
};

Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.prototype.cancelLoadData = function()
{
	if (this.state == Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_REQUESTED)
	{
		if (this.timer)
		{
			this.timer.clearTimeout();
			this.timer = null;
		}

		this.rawData = null;
		this.state = Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.NOT_LOADED;
	}
};

Spry.Data.HTTPSourceDataSet.LoadManager.getCacheKey = function(reqInfo)
{
	return reqInfo.method + "::" + reqInfo.url + "::" + reqInfo.postData + "::" + reqInfo.username;
};

Spry.Data.HTTPSourceDataSet.LoadManager.loadData = function(reqInfo, ds, useCache)
{
	if (!reqInfo)
		return null;

	var cacheObj = null;
	var cacheKey = null;

	if (useCache)
	{
		cacheKey = Spry.Data.HTTPSourceDataSet.LoadManager.getCacheKey(reqInfo);
		cacheObj = Spry.Data.HTTPSourceDataSet.LoadManager.cache[cacheKey];
	}

	if (cacheObj)
	{
		if (cacheObj.state == Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_REQUESTED)
		{
			if (ds)
				cacheObj.addObserver(ds);
			return cacheObj;
		}
		else if (cacheObj.state == Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest.LOAD_SUCCESSFUL)
		{

			if (ds)
				setTimeout(function() { ds.setDataFromDoc(cacheObj.rawData); }, 0);
			return cacheObj;
		}
	}


	if (!cacheObj)
	{
		cacheObj = new Spry.Data.HTTPSourceDataSet.LoadManager.CachedRequest(reqInfo, (ds ? ds.xhRequestProcessor : null), (ds ? ds.sessionExpiredChecker : null));

		if (useCache)
		{
			Spry.Data.HTTPSourceDataSet.LoadManager.cache[cacheKey] = cacheObj;

			// Add an observer that will remove the cacheObj from the cache
			// if there is a load request failure.
			cacheObj.addObserver({ onRequestError: function() { Spry.Data.HTTPSourceDataSet.LoadManager.cache[cacheKey] = undefined; }});
		}
	}

	if (ds)
		cacheObj.addObserver(ds);

	cacheObj.loadData();

	return cacheObj;
};

Spry.Data.HTTPSourceDataSet.LoadManager.cancelLoadData = function(cacheObj, ds)
{
	if (cacheObj)
	{
		if (ds)
			cacheObj.removeObserver(ds);
		else
			cacheObj.cancelLoadData();
	}
};


Spry.Data.XMLDataSet = function(dataSetURL, dataSetPath, dataSetOptions)
{


	this.xpath = dataSetPath;
	this.doc = null;
	this.subPaths = [];

	Spry.Data.HTTPSourceDataSet.call(this, dataSetURL, dataSetOptions);


	var jwType = typeof this.subPaths;
	if (jwType == "string" || (jwType == "object" && this.subPaths.constructor != Array))
		this.subPaths = [ this.subPaths ];
}; // End of Spry.Data.XMLDataSet() constructor.

Spry.Data.XMLDataSet.prototype = new Spry.Data.HTTPSourceDataSet();
Spry.Data.XMLDataSet.prototype.constructor = Spry.Data.XMLDataSet;


Spry.Data.XMLDataSet.prototype.getDataRefStrings = function()
{
	var strArr = [];
	if (this.url) strArr.push(this.url);
	if (this.xpath) strArr.push(this.xpath);
	if (this.requestInfo && this.requestInfo.postData) strArr.push(this.requestInfo.postData);
	return strArr;
};

Spry.Data.XMLDataSet.prototype.getDocument = function() { return this.doc; };
Spry.Data.XMLDataSet.prototype.getXPath = function() { return this.xpath; };
Spry.Data.XMLDataSet.prototype.setXPath = function(path)
{
	if (this.xpath != path)
	{
		this.xpath = path;
		if (this.dataWasLoaded && this.doc)
		{
			this.notifyObservers("onPreLoad");
			this.setDataFromDoc(this.doc);
		}
	}
};

Spry.Data.XMLDataSet.PathNode = function(path)
{
	this.path = path;
	this.subPaths = [];
	this.xpath = "";
};

Spry.Data.XMLDataSet.PathNode.prototype.addSubPath = function(path)
{
	var node = this.findSubPath(path);
	if (!node)
	{
		node = new Spry.Data.XMLDataSet.PathNode(path);
		this.subPaths.push(node);
	}
	return node;
};

Spry.Data.XMLDataSet.PathNode.prototype.findSubPath = function(path)
{
	var numSubPaths = this.subPaths.length;
	for (var i = 0; i < numSubPaths; i++)
	{
		var subPath = this.subPaths[i];
		if (path == subPath.path)
			return subPath;
	}
	return null;
};

Spry.Data.XMLDataSet.PathNode.prototype.consolidate = function()
{
	var numSubPaths = this.subPaths.length;
	if (!this.xpath && numSubPaths == 1)
	{
		// Consolidate!
		var subPath = this.subPaths[0];
		this.path += ((subPath[0] != "/") ? "/" : "") + subPath.path;
		this.xpath = subPath.xpath;
		this.subPaths = subPath.subPaths;
		this.consolidate();
		return;
	}

	for (var i = 0; i < numSubPaths; i++)
		this.subPaths[i].consolidate();
};

Spry.Data.XMLDataSet.prototype.convertXPathsToPathTree = function(xpathArray)
{
	var xpaLen = xpathArray.length;
	var root = new Spry.Data.XMLDataSet.PathNode("");

	for (var i = 0; i < xpaLen; i++)
	{

		var xpath = xpathArray[i];
		var cleanXPath = xpath.replace(/\/\//g, "/__SPRYDS__");
		cleanXPath = cleanXPath.replace(/^\//, ""); // Strip any leading slash.
		var pathItems = cleanXPath.split(/\//);
		var pathItemsLen = pathItems.length;

		// Now add each path component to our tree.

		var node = root;
		for (var j = 0; j < pathItemsLen; j++)
		{
			// If this path component has a placeholder in it, convert it
			// back to a double slash.

			var path = pathItems[j].replace(/__SPRYDS__/, "//");
			node = node.addSubPath(path);
		}


		node.xpath = xpath;
	}

	root.consolidate();
	return root;
};

Spry.Data.XMLDataSet.prototype.flattenSubPaths = function(rs, subPaths)
{
	if (!rs || !subPaths)
		return;

	var numSubPaths = subPaths.length;
	if (numSubPaths < 1)
		return;

	var data = rs.data;
	var dataHash = {};


	var xpathArray = [];
	var cleanedXPathArray = [];

	for (var i = 0; i < numSubPaths; i++)
	{

		var subPath = subPaths[i];
		if (typeof subPath == "object")
			subPath = subPath.path;
		if (!subPath)
			subPath = "";

		xpathArray[i] = Spry.Data.Region.processDataRefString(null, subPath, this.dataSetsForDataRefStrings);


		cleanedXPathArray[i] = xpathArray[i].replace(/\[.*\]/g, "");
	}


	var row;
	var numRows = data.length;
	var newData = [];

	for (var i = 0; i < numRows; i++)
	{
		row = data[i];
		var newRows = [ row ];

		// Iterate over every subPath passed into this function.

		for (var j = 0; j < numSubPaths; j++)
		{
	

			var newRS = Spry.Utils.getRecordSetFromXMLDoc(row.ds_XMLNode, xpathArray[j], (subPaths[j].xpath ? false : true));


			if (newRS && newRS.data && newRS.data.length)
			{
				if (typeof subPaths[j] == "object" && subPaths[j].subPaths)
				{
				
				

					var sp = subPaths[j].subPaths;
					spType = typeof sp;
					if (spType == "string")
						sp = [ sp ];
					else if (spType == "object" && spType.constructor == Object)
						sp = [ sp ];


					this.flattenSubPaths(newRS, sp);
				}

				var newRSData = newRS.data;
				var numRSRows = newRSData.length;

				var cleanedXPath = cleanedXPathArray[j] + "/";

				var numNewRows = newRows.length;
				var joinedRows = [];


				for (var k = 0; k < numNewRows; k++)
				{
					var newRow = newRows[k];

			

					for (var l = 0; l < numRSRows; l++)
					{
						// Create a new row that will house the join result.

						var newRowObj = new Object;
						var newRSRow = newRSData[l];

						// Copy the columns from the newRow into our row
						// object.

						for (prop in newRow)
							newRowObj[prop] = newRow[prop];


						for (var prop in newRSRow)
						{
							// The new propery name will have the subPath used prepended to it.
							var newPropName = cleanedXPath + prop;

				

							if (cleanedXPath == (prop + "/") || cleanedXPath.search(new RegExp("\\/" + prop + "\\/$")) != -1)
								newPropName = cleanedXPathArray[j];

							// Copy the props to the new object using the new property name.

							newRowObj[newPropName] = newRSRow[prop];
						}

						// Now add this row to the array that tracks all of the new
						// rows we've just created.

						joinedRows.push(newRowObj);
					}
				}

	

				newRows = joinedRows;
			}
		}

		newData = newData.concat(newRows);
	}


	data = newData;
	numRows = data.length;

	for (i = 0; i < numRows; i++)
	{
		row = data[i];
		row.ds_RowID = i;
		dataHash[row.ds_RowID] = row;
	}


	rs.data = data;
	rs.dataHash = dataHash;
};

Spry.Data.XMLDataSet.prototype.loadDataIntoDataSet = function(rawDataDoc)
{
	var rs = null;
	var mainXPath = Spry.Data.Region.processDataRefString(null, this.xpath, this.dataSetsForDataRefStrings);
	var subPaths = this.subPaths;
	var suppressColumns = false;

	if (this.subPaths && this.subPaths.length > 0)
	{


		var processedSubPaths = [];
		var numSubPaths = subPaths.length;
		for (var i = 0; i < numSubPaths; i++)
		{
			var subPathStr = Spry.Data.Region.processDataRefString(null, subPaths[i], this.dataSetsForDataRefStrings);
			if (subPathStr.charAt(0) != '/')
				subPathStr = mainXPath + "/" + subPathStr;
			processedSubPaths.push(subPathStr);
		}


		processedSubPaths.unshift(mainXPath);
		var commonParent = this.convertXPathsToPathTree(processedSubPaths);


		mainXPath = commonParent.path;
		subPaths = commonParent.subPaths;


		suppressColumns = commonParent.xpath ? false : true;
	}

	rs = Spry.Utils.getRecordSetFromXMLDoc(rawDataDoc, mainXPath, suppressColumns);

	if (!rs)
	{
		Spry.Debug.reportError("Spry.Data.XMLDataSet.loadDataIntoDataSet() failed to create dataSet '" + this.name + "'for '" + this.xpath + "' - " + this.url + "\n");
		return;
	}


	this.flattenSubPaths(rs, subPaths);

	this.doc = rs.xmlDoc;
	this.data = rs.data;
	this.dataHash = rs.dataHash;
	this.dataWasLoaded = (this.doc != null);
};

Spry.Data.XMLDataSet.prototype.xhRequestProcessor = function(xhRequest)
{
	// XMLDataSet uses the responseXML from the xhRequest

	var resp = xhRequest.responseXML;
	var manualParseRequired = false;

	if (xhRequest.status != 200)
	{
		if (xhRequest.status == 0)
		{


			if (xhRequest.responseText && (!resp || !resp.firstChild))
				manualParseRequired = true;
		}
	}
	else if (!resp)
	{
	
		manualParseRequired = true;
	}

	if (manualParseRequired)
		resp = Spry.Utils.stringToXMLDoc(xhRequest.responseText);

	if (!resp  || !resp.firstChild || resp.firstChild.nodeName == "parsererror")
		return null;

	return resp;
};

Spry.Data.XMLDataSet.prototype.sessionExpiredChecker = function(req)
{
	if (req.xhRequest.responseText == 'session expired')
		return true;
	else
	{
		if (req.rawData)
		{
			var firstChild = req.rawData.documentElement.firstChild;
			if (firstChild && firstChild.nodeValue == "session expired")
				return true;
		}
	}
	return false;
};


Spry.Data.Region = function(regionNode, name, isDetailRegion, data, dataSets, regionStates, regionStateMap, hasBehaviorAttributes)
{
	this.regionNode = regionNode;
	this.name = name;
	this.isDetailRegion = isDetailRegion;
	this.data = data;
	this.dataSets = dataSets;
	this.hasBehaviorAttributes = hasBehaviorAttributes;
	this.tokens = null;
	this.currentState = null;
	this.states = { ready: true };
	this.stateMap = {};

	Spry.Utils.setOptions(this.states, regionStates);
	Spry.Utils.setOptions(this.stateMap, regionStateMap);

	// Add the region as an observer to the dataSet!
	for (var i = 0; i < this.dataSets.length; i++)
	{
		var ds = this.dataSets[i];

		try
		{
			if (ds)
				ds.addObserver(this);
		}
		catch(e) { Spry.Debug.reportError("Failed to add '" + this.name + "' as a dataSet observer!\n"); }
	}
}; // End of Spry.Data.Region() constructor.

Spry.Data.Region.hiddenRegionClassName = "SpryHiddenRegion";
Spry.Data.Region.evenRowClassName = "even";
Spry.Data.Region.oddRowClassName = "odd";
Spry.Data.Region.notifiers = {};
Spry.Data.Region.evalScripts = true;

Spry.Data.Region.addObserver = function(regionID, observer)
{
	var n = Spry.Data.Region.notifiers[regionID];
	if (!n)
	{
		n = new Spry.Utils.Notifier();
		Spry.Data.Region.notifiers[regionID] = n;
	}
	n.addObserver(observer);
};

Spry.Data.Region.removeObserver = function(regionID, observer)
{
	var n = Spry.Data.Region.notifiers[regionID];
	if (n)
		n.removeObserver(observer);
};

Spry.Data.Region.notifyObservers = function(methodName, region, data)
{
	var n = Spry.Data.Region.notifiers[region.name];
	if (n)
	{
		var dataObj = {};
		if (data && typeof data == "object")
			dataObj = data;
		else
			dataObj.data = data;

		dataObj.region = region;
		dataObj.regionID = region.name;
		dataObj.regionNode = region.regionNode;

		n.notifyObservers(methodName, dataObj);
	}
};

Spry.Data.Region.RS_Error = 0x01;
Spry.Data.Region.RS_LoadingData = 0x02;
Spry.Data.Region.RS_PreUpdate = 0x04;
Spry.Data.Region.RS_PostUpdate = 0x08;

Spry.Data.Region.prototype.getState = function()
{
	return this.currentState;
};

Spry.Data.Region.prototype.mapState = function(stateName, newStateName)
{
	this.stateMap[stateName] = newStateName;
};

Spry.Data.Region.prototype.getMappedState = function(stateName)
{
	var mappedState = this.stateMap[stateName];
	return mappedState ? mappedState : stateName;
};

Spry.Data.Region.prototype.setState = function(stateName, suppressNotfications)
{
	var stateObj = { state: stateName, mappedState: this.getMappedState(stateName) };
	if (!suppressNotfications)
		Spry.Data.Region.notifyObservers("onPreStateChange", this, stateObj);

	this.currentState = stateObj.mappedState ? stateObj.mappedState : stateName;

	if (this.states[stateName])
	{
		var notificationData = { state: this.currentState };
		if (!suppressNotfications)
			Spry.Data.Region.notifyObservers("onPreUpdate", this, notificationData);

		var str = this.transform();


		if (Spry.Data.Region.debug)
			Spry.Debug.trace("<hr />Generated region markup for '" + this.name + "':<br /><br />" + Spry.Utils.encodeEntities(str));

		Spry.Utils.setInnerHTML(this.regionNode, str, !Spry.Data.Region.evalScripts);

		if (this.hasBehaviorAttributes)
			this.attachBehaviors();

		if (!suppressNotfications)
			Spry.Data.Region.notifyObservers("onPostUpdate", this, notificationData);
	}

	if (!suppressNotfications)
		Spry.Data.Region.notifyObservers("onPostStateChange", this, stateObj);
};

Spry.Data.Region.prototype.getDataSets = function()
{
	return this.dataSets;
};

Spry.Data.Region.prototype.addDataSet = function(aDataSet)
{
	if (!aDataSet)
		return;

	if (!this.dataSets)
		this.dataSets = new Array;

	// Check to see if the data set is already in our list.

	for (var i = 0; i < this.dataSets.length; i++)
	{
		if (this.dataSets[i] == aDataSet)
			return; // It's already in our list!
	}

	this.dataSets.push(aDataSet);
	aDataSet.addObserver(this);
};

Spry.Data.Region.prototype.removeDataSet = function(aDataSet)
{
	if (!aDataSet || this.dataSets)
		return;

	for (var i = 0; i < this.dataSets.length; i++)
	{
		if (this.dataSets[i] == aDataSet)
		{
			this.dataSets.splice(i, 1);
			aDataSet.removeObserver(this);
			return;
		}
	}
};

Spry.Data.Region.prototype.onPreLoad = function(dataSet)
{
	if (this.currentState != "loading")
		this.setState("loading");
};

Spry.Data.Region.prototype.onLoadError = function(dataSet)
{
	if (this.currentState != "error")
		this.setState("error");
	Spry.Data.Region.notifyObservers("onError", this);
};

Spry.Data.Region.prototype.onSessionExpired = function(dataSet)
{
	if (this.currentState != "expired")
		this.setState("expired");
	Spry.Data.Region.notifyObservers("onExpired", this);
};

Spry.Data.Region.prototype.onCurrentRowChanged = function(dataSet, data)
{
	if (this.isDetailRegion)
		this.updateContent();
};

Spry.Data.Region.prototype.onPostSort = function(dataSet, data)
{
	this.updateContent();
};

Spry.Data.Region.prototype.onDataChanged = function(dataSet, data)
{
	this.updateContent();
};

Spry.Data.Region.enableBehaviorAttributes = true;
Spry.Data.Region.behaviorAttrs = {};

Spry.Data.Region.behaviorAttrs["spry:select"] =
{
	attach: function(rgn, node, value)
	{
		var selectGroupName = null;
		try { selectGroupName = node.attributes.getNamedItem("spry:selectgroup").value; } catch (e) {}
		if (!selectGroupName)
			selectGroupName = "default";

		Spry.Utils.addEventListener(node, "click", function(event) { Spry.Utils.SelectionManager.select(selectGroupName, node, value); }, false);

		if (node.attributes.getNamedItem("spry:selected"))
			Spry.Utils.SelectionManager.select(selectGroupName, node, value);
	}
};

Spry.Data.Region.behaviorAttrs["spry:hover"] =
{
	attach: function(rgn, node, value)
	{
		Spry.Utils.addEventListener(node, "mouseover", function(event){ Spry.Utils.addClassName(node, value); }, false);
		Spry.Utils.addEventListener(node, "mouseout", function(event){ Spry.Utils.removeClassName(node, value); }, false);
	}
};

Spry.Data.Region.setUpRowNumberForEvenOddAttr = function(node, attr, value, rowNumAttrName)
{

	if (!value)
	{
		Spry.Debug.showError("The " + attr + " attribute requires a CSS class name as its value!");
		node.attributes.removeNamedItem(attr);
		return;
	}

	var dsName = "";
	var valArr = value.split(/\s/);
	if (valArr.length > 1)
	{

		dsName = valArr[0];
		node.setAttribute(attr, valArr[1]);
	}


	node.setAttribute(rowNumAttrName, "{" + (dsName ? (dsName + "::") : "") + "ds_RowNumber}");
};

Spry.Data.Region.behaviorAttrs["spry:even"] =
{
	setup: function(node, value)
	{
		Spry.Data.Region.setUpRowNumberForEvenOddAttr(node, "spry:even", value, "spryevenrownumber");
	},

	attach: function(rgn, node, value)
	{
		if (value)
		{
			rowNumAttr = node.attributes.getNamedItem("spryevenrownumber");
			if (rowNumAttr && rowNumAttr.value)
			{
				var rowNum = parseInt(rowNumAttr.value);
				if (rowNum % 2)
					Spry.Utils.addClassName(node, value);
			}
		}
		node.removeAttribute("spry:even");
		node.removeAttribute("spryevenrownumber");
	}
};

Spry.Data.Region.behaviorAttrs["spry:odd"] =
{
	setup: function(node, value)
	{
		Spry.Data.Region.setUpRowNumberForEvenOddAttr(node, "spry:odd", value, "spryoddrownumber");
	},

	attach: function(rgn, node, value)
	{
		if (value)
		{
			rowNumAttr = node.attributes.getNamedItem("spryoddrownumber");
			if (rowNumAttr && rowNumAttr.value)
			{
				var rowNum = parseInt(rowNumAttr.value);
				if (rowNum % 2 == 0)
					Spry.Utils.addClassName(node, value);
			}
		}
		node.removeAttribute("spry:odd");
		node.removeAttribute("spryoddrownumber");
	}
};

Spry.Data.Region.setRowAttrClickHandler = function(node, dsName, rowAttr, funcName)
{
		if (dsName)
		{
			var ds = null;
			try { ds = Spry.Utils.eval(dsName); } catch(e) { ds = null; };
			if (ds)
			{
				rowIDAttr = node.attributes.getNamedItem(rowAttr);
				if (rowIDAttr)
				{
					var rowAttrVal = rowIDAttr.value;
					if (rowAttrVal)
						Spry.Utils.addEventListener(node, "click", function(event){ ds[funcName](rowAttrVal); }, false);
				}
			}
		}
};

Spry.Data.Region.behaviorAttrs["spry:setrow"] =
{
	setup: function(node, value)
	{
		if (!value)
		{
			Spry.Debug.reportError("The spry:setrow attribute requires a data set name as its value!");
			node.removeAttribute("spry:setrow");
			return;
		}

		node.setAttribute("spryrowid", "{" + value + "::ds_RowID}");
	},

	attach: function(rgn, node, value)
	{
		Spry.Data.Region.setRowAttrClickHandler(node, value, "spryrowid", "setCurrentRow");
		node.removeAttribute("spry:setrow");
		node.removeAttribute("spryrowid");
	}
};

Spry.Data.Region.behaviorAttrs["spry:setrownumber"] =
{
	setup: function(node, value)
	{
		if (!value)
		{
			Spry.Debug.reportError("The spry:setrownumber attribute requires a data set name as its value!");
			node.removeAttribute("spry:setrownumber");
			return;
		}


		node.setAttribute("spryrownumber", "{" + value + "::ds_RowID}");
	},

	attach: function(rgn, node, value)
	{
		Spry.Data.Region.setRowAttrClickHandler(node, value, "spryrownumber", "setCurrentRowNumber");
		node.removeAttribute("spry:setrownumber");
		node.removeAttribute("spryrownumber");
	}
};

Spry.Data.Region.behaviorAttrs["spry:sort"] =
{
	attach: function(rgn, node, value)
	{
		if (!value)
			return;

		var ds = rgn.getDataSets()[0];
		var sortOrder = "toggle";

		var colArray = value.split(/\s/);
		if (colArray.length > 1)
		{

			try
			{
				var specifiedDS = eval(colArray[0]);
				if (specifiedDS && (typeof specifiedDS) == "object")
				{
					ds = specifiedDS;
					colArray.shift();
				}

			} catch(e) {}

			if (colArray.length > 1)
			{
				var str = colArray[colArray.length - 1];
				if (str == "ascending" || str == "descending" || str == "toggle")
				{
					sortOrder = str;
					colArray.pop();
				}
			}
		}


		if (ds && colArray.length > 0)
			Spry.Utils.addEventListener(node, "click", function(event){ ds.sort(colArray, sortOrder); }, false);

		node.removeAttribute("spry:sort");
	}
};

Spry.Data.Region.prototype.attachBehaviors = function()
{
	var rgn = this;
	Spry.Utils.getNodesByFunc(this.regionNode, function(node)
	{
		if (!node || node.nodeType != 1 /* Node.ELEMENT_NODE */)
			return false;
		try
		{
			var bAttrs = Spry.Data.Region.behaviorAttrs;
			for (var bAttrName in bAttrs)
			{
				var attr = node.attributes.getNamedItem(bAttrName);
				if (attr)
				{
					var behavior = bAttrs[bAttrName];
					if (behavior && behavior.attach)
						behavior.attach(rgn, node, attr.value);
				}
			}
		} catch(e) {}

		return false;
	});
};

Spry.Data.Region.prototype.updateContent = function()
{
	var allDataSetsReady = true;

	var dsArray = this.getDataSets();

	if (!dsArray || dsArray.length < 1)
	{
		Spry.Debug.reportError("updateContent(): Region '" + this.name + "' has no data set!\n");
		return;
	}

	for (var i = 0; i < dsArray.length; i++)
	{
		var ds = dsArray[i];

		if (ds)
		{
			if (ds.getLoadDataRequestIsPending())
				allDataSetsReady = false;
			else if (!ds.getDataWasLoaded())
			{
				ds.loadData();
				allDataSetsReady = false;
			}
		}
	}

	if (!allDataSetsReady)
	{
		Spry.Data.Region.notifyObservers("onLoadingData", this);

		return;
	}

	this.setState("ready");
};

Spry.Data.Region.prototype.clearContent = function()
{
	this.regionNode.innerHTML = "";
};

Spry.Data.Region.processContentPI = function(inStr)
{
	var outStr = "";
	var regexp = /<!--\s*<\/?spry:content\s*[^>]*>\s*-->/mg;
	var searchStartIndex = 0;
	var processingContentTag = 0;

	while (inStr.length)
	{
		var results = regexp.exec(inStr);
		if (!results || !results[0])
		{
			outStr += inStr.substr(searchStartIndex, inStr.length - searchStartIndex);
			break;
		}

		if (!processingContentTag && results.index != searchStartIndex)
		{
	
			outStr += inStr.substr(searchStartIndex, results.index - searchStartIndex);
		}

		if (results[0].search(/<\//) != -1)
		{
			--processingContentTag;
			if (processingContentTag)
				Spry.Debug.reportError("Nested spry:content regions are not allowed!\n");
		}
		else
		{
			++processingContentTag;
			var dataRefStr = results[0].replace(/.*\bdataref="/, "");
			outStr += dataRefStr.replace(/".*$/, "");
		}

		searchStartIndex = regexp.lastIndex;
	}

	return outStr;
}

Spry.Data.Region.prototype.tokenizeData = function(dataStr)
{
	if (!dataStr)
		return null;

	var rootToken = new Spry.Data.Region.Token(Spry.Data.Region.Token.LIST_TOKEN, null, null, null);
	var tokenStack = new Array;
	var parseStr = Spry.Data.Region.processContentPI(dataStr);

	tokenStack.push(rootToken);

	var regexp = /((<!--\s*){0,1}<\/{0,1}spry:[^>]+>(\s*-->){0,1})|((\{|%7[bB])[^\}\s%]+(\}|%7[dD]))/mg;
	var searchStartIndex = 0;

	while(parseStr.length)
	{
		var results = regexp.exec(parseStr);
		var token = null;

		if (!results || !results[0])
		{
	
			var str = parseStr.substr(searchStartIndex, parseStr.length - searchStartIndex);
			token = new Spry.Data.Region.Token(Spry.Data.Region.Token.STRING_TOKEN, null, str, str);
			tokenStack[tokenStack.length - 1].addChild(token);
			break;
		}

		if (results.index != searchStartIndex)
		{

			var str = parseStr.substr(searchStartIndex, results.index - searchStartIndex);
			token = new Spry.Data.Region.Token(Spry.Data.Region.Token.STRING_TOKEN, null, str, str);
			tokenStack[tokenStack.length - 1].addChild(token);
		}

	
		if (results[0].search(/^({|%7[bB])/) != -1 /* results[0].charAt(0) == '{' */)
		{
			var valueName = results[0];
			var regionStr = results[0];



			valueName = valueName.replace(/^({|%7[bB])/, "");
			valueName = valueName.replace(/(}|%7[dD])$/, "");


			var dataSetName = null;
			var splitArray = valueName.split(/::/);

			if (splitArray.length > 1)
			{
				dataSetName = splitArray[0];
				valueName = splitArray[1];
			}

			// Convert any url encoded braces to regular brace chars.

			regionStr = regionStr.replace(/^%7[bB]/, "{");
			regionStr = regionStr.replace(/%7[dD]$/, "}");

			token = new Spry.Data.Region.Token(Spry.Data.Region.Token.VALUE_TOKEN, dataSetName, valueName, new String(regionStr));
			tokenStack[tokenStack.length - 1].addChild(token);
		}
		else if (results[0].charAt(0) == '<')
		{
			// Extract out the name of the processing instruction.
			var piName = results[0].replace(/^(<!--\s*){0,1}<\/?/, "");
			piName = piName.replace(/>(\s*-->){0,1}|\s.*$/, "");

			if (results[0].search(/<\//) != -1 /* results[0].charAt(1) == '/' */)
			{

				if (tokenStack[tokenStack.length - 1].tokenType != Spry.Data.Region.Token.PROCESSING_INSTRUCTION_TOKEN)
				{
					Spry.Debug.reportError("Invalid processing instruction close tag: " + piName + " -- " + results[0] + "\n");
					return null;
				}

				tokenStack.pop();
			}
			else
			{

				var piDesc = Spry.Data.Region.PI.instructions[piName];

				if (piDesc)
				{
					var dataSet = null;

					var selectedDataSetName = "";
					if (results[0].search(/^.*\bselect=\"/) != -1)
					{
						selectedDataSetName = results[0].replace(/^.*\bselect=\"/, "");
						selectedDataSetName = selectedDataSetName.replace(/".*$/, "");

						if (selectedDataSetName)
						{
							try
							{
								dataSet = eval(selectedDataSetName);
							}
							catch (e)
							{
								Spry.Debug.reportError("Caught exception in tokenizeData() while trying to retrieve data set (" + selectedDataSetName + "): " + e + "\n");
								dataSet = null;
								selectedDataSetName = "";
							}
						}
					}

					// Check if the repeat has a test attribute.
					var jsExpr = null;
					if (results[0].search(/^.*\btest=\"/) != -1)
					{
						jsExpr = results[0].replace(/^.*\btest=\"/, "");
						jsExpr = jsExpr.replace(/".*$/, "");
						jsExpr = Spry.Utils.decodeEntities(jsExpr);
					}

					// Check if the instruction has a state name specified.
					var regionState = null;
					if (results[0].search(/^.*\bname=\"/) != -1)
					{
						regionState = results[0].replace(/^.*\bname=\"/, "");
						regionState = regionState.replace(/".*$/, "");
						regionState = Spry.Utils.decodeEntities(regionState);
					}

					var piData = new Spry.Data.Region.Token.PIData(piName, selectedDataSetName, jsExpr, regionState);

					token = new Spry.Data.Region.Token(Spry.Data.Region.Token.PROCESSING_INSTRUCTION_TOKEN, dataSet, piData, new String(results[0]));

					tokenStack[tokenStack.length - 1].addChild(token);
					tokenStack.push(token);
				}
				else
				{
					Spry.Debug.reportError("Unsupported region processing instruction: " + results[0] + "\n");
					return null;
				}
			}
		}
		else
		{
			Spry.Debug.reportError("Invalid region token: " + results[0] + "\n");
			return null;
		}

		searchStartIndex = regexp.lastIndex;
	}

	return rootToken;
};

Spry.Data.Region.prototype.processTokenChildren = function(outputArr, token, processContext)
{
	var children = token.children;
	var len = children.length;

	for (var i = 0; i < len; i++)
		this.processTokens(outputArr, children[i], processContext);
};

Spry.Data.Region.prototype.processTokens = function(outputArr, token, processContext)
{
	var i = 0;

	switch(token.tokenType)
	{
		case Spry.Data.Region.Token.LIST_TOKEN:
			this.processTokenChildren(outputArr, token, processContext);
			break;
		case Spry.Data.Region.Token.STRING_TOKEN:
			outputArr.push(token.data);
			break;
		case Spry.Data.Region.Token.PROCESSING_INSTRUCTION_TOKEN:
			if (token.data.name == "spry:repeat")
			{
				var dataSet = null;

				if (token.dataSet)
					dataSet = token.dataSet;
				else
					dataSet = this.dataSets[0];

				if (dataSet)
				{
					var dsContext = processContext.getDataSetContext(dataSet);
					if (!dsContext)
					{
						Spry.Debug.reportError("processTokens() failed to get a data set context!\n");
						break;
					}

					dsContext.pushState();

					var dataSetRows = dsContext.getData();
					var numRows = dataSetRows.length;
					for (i = 0; i < numRows; i++)
					{
						dsContext.setRowIndex(i);
						var testVal = true;
						if (token.data.jsExpr)
						{
							var jsExpr = Spry.Data.Region.processDataRefString(processContext, token.data.jsExpr, null, true);
							try { testVal = Spry.Utils.eval(jsExpr); }
							catch(e)
							{
								Spry.Debug.trace("Caught exception in Spry.Data.Region.prototype.processTokens while evaluating: " + jsExpr + "\n    Exception:" + e + "\n");
								testVal = true;
							}
						}

						if (testVal)
							this.processTokenChildren(outputArr, token, processContext);
					}
					dsContext.popState();
				}
			}
			else if (token.data.name == "spry:if")
			{
				var testVal = true;

				if (token.data.jsExpr)
				{
					var jsExpr = Spry.Data.Region.processDataRefString(processContext, token.data.jsExpr, null, true);

					try { testVal = Spry.Utils.eval(jsExpr); }
					catch(e)
					{
						Spry.Debug.trace("Caught exception in Spry.Data.Region.prototype.processTokens while evaluating: " + jsExpr + "\n    Exception:" + e + "\n");
						testVal = true;
					}
				}

				if (testVal)
					this.processTokenChildren(outputArr, token, processContext);
			}
			else if (token.data.name == "spry:choose")
			{
				var defaultChild = null;
				var childToProcess = null;
				var testVal = false;
				var j = 0;

				for (j = 0; j < token.children.length; j++)
				{
					var child = token.children[j];
					if (child.tokenType == Spry.Data.Region.Token.PROCESSING_INSTRUCTION_TOKEN)
					{
						if (child.data.name == "spry:when")
						{
							if (child.data.jsExpr)
							{
								var jsExpr = Spry.Data.Region.processDataRefString(processContext, child.data.jsExpr, null, true);
								try { testVal = Spry.Utils.eval(jsExpr); }
								catch(e)
								{
									Spry.Debug.trace("Caught exception in Spry.Data.Region.prototype.processTokens while evaluating: " + jsExpr + "\n    Exception:" + e + "\n");
									testVal = false;
								}

								if (testVal)
								{
									childToProcess = child;
									break;
								}
							}
						}
						else if (child.data.name == "spry:default")
							defaultChild = child;
					}
				}

				// If we didn't find a match, use the token for the default case.

				if (!childToProcess && defaultChild)
					childToProcess = defaultChild;

				if (childToProcess)
					this.processTokenChildren(outputArr, childToProcess, processContext);
			}
			else if (token.data.name == "spry:state")
			{
				var testVal = true;

				if (!token.data.regionState || token.data.regionState == this.currentState)
					this.processTokenChildren(outputArr, token, processContext);
			}
			else
			{
				Spry.Debug.reportError("processTokens(): Unknown processing instruction: " + token.data.name + "\n");
				return "";
			}
			break;
		case Spry.Data.Region.Token.VALUE_TOKEN:

			var dataSet = token.dataSet;
			if (!dataSet && this.dataSets && this.dataSets.length > 0 && this.dataSets[0])
			{
	

				dataSet = this.dataSets[0];
			}
			if (!dataSet)
			{
				Spry.Debug.reportError("processTokens(): Value reference has no data set specified: " + token.regionStr + "\n");
				return "";
			}

			var dsContext = processContext.getDataSetContext(dataSet);
			if (!dsContext)
			{
				Spry.Debug.reportError("processTokens: Failed to get a data set context!\n");
				return "";
			}

			var ds = dsContext.getDataSet();

			if (token.data == "ds_RowNumber")
				outputArr.push(dsContext.getRowIndex());
			else if (token.data == "ds_RowNumberPlus1")
				outputArr.push(dsContext.getRowIndex() + 1);
			else if (token.data == "ds_RowCount")
				outputArr.push(dsContext.getNumRows());
			else if (token.data == "ds_UnfilteredRowCount")
				outputArr.push(dsContext.getNumRows(true));
			else if (token.data == "ds_CurrentRowNumber")
				outputArr.push(ds.getRowNumber(ds.getCurrentRow()));
			else if (token.data == "ds_CurrentRowID")
				outputArr.push(ds.getCurrentRowID());
			else if (token.data == "ds_EvenOddRow")
				outputArr.push((dsContext.getRowIndex() % 2) ? Spry.Data.Region.evenRowClassName : Spry.Data.Region.oddRowClassName);
			else if (token.data == "ds_SortOrder")
				outputArr.push(ds.getSortOrder());
			else if (token.data == "ds_SortColumn")
				outputArr.push(ds.getSortColumn());
			else
			{
				var curDataSetRow = dsContext.getCurrentRow();
				if (curDataSetRow)
					outputArr.push(curDataSetRow[token.data]);
			}
			break;
		default:
			Spry.Debug.reportError("processTokens(): Invalid token type: " + token.regionStr + "\n");
			break;
	}
};

Spry.Data.Region.prototype.transform = function()
{
	if (this.data && !this.tokens)
		this.tokens = this.tokenizeData(this.data);

	if (!this.tokens)
		return "";

	processContext = new Spry.Data.Region.ProcessingContext(this);
	if (!processContext)
		return "";

	var outputArr = [ "" ];
	this.processTokens(outputArr, this.tokens, processContext);
	return outputArr.join("");
};

Spry.Data.Region.PI = {};
Spry.Data.Region.PI.instructions = {};

Spry.Data.Region.PI.buildOpenTagForValueAttr = function(ele, piName, attrName)
{
	if (!ele || !piName)
		return "";

	var jsExpr = "";

	try
	{
		var testAttr = ele.attributes.getNamedItem(piName);
		if (testAttr && testAttr.value)
			jsExpr = Spry.Utils.encodeEntities(testAttr.value);
	}
	catch (e) { jsExpr = ""; }

	if (!jsExpr)
	{
		Spry.Debug.reportError(piName + " attribute requires a JavaScript expression that returns true or false!\n");
		return "";
	}

	return "<" + Spry.Data.Region.PI.instructions[piName].tagName + " " + attrName +"=\"" + jsExpr + "\">";
};

Spry.Data.Region.PI.buildOpenTagForTest = function(ele, piName)
{
	return Spry.Data.Region.PI.buildOpenTagForValueAttr(ele, piName, "test");
};

Spry.Data.Region.PI.buildOpenTagForState = function(ele, piName)
{
	return Spry.Data.Region.PI.buildOpenTagForValueAttr(ele, piName, "name");
};

Spry.Data.Region.PI.buildOpenTagForRepeat = function(ele, piName)
{
	if (!ele || !piName)
		return "";

	var selectAttrStr = "";

	try
	{
		var selectAttr = ele.attributes.getNamedItem(piName);
		if (selectAttr && selectAttr.value)
		{
			selectAttrStr = selectAttr.value;
			selectAttrStr = selectAttrStr.replace(/\s/g, "");
		}
	}
	catch (e) { selectAttrStr = ""; }

	if (!selectAttrStr)
	{
		Spry.Debug.reportError(piName + " attribute requires a data set name!\n");
		return "";
	}

	var testAttrStr = "";

	try
	{
		var testAttr = ele.attributes.getNamedItem("spry:test");
		if (testAttr)
		{
			if (testAttr.value)
				testAttrStr = " test=\"" + Spry.Utils.encodeEntities(testAttr.value) + "\"";
			ele.attributes.removeNamedItem(testAttr.nodeName);
		}
	}
	catch (e) { testAttrStr = ""; }

	return "<" + Spry.Data.Region.PI.instructions[piName].tagName + " select=\"" + selectAttrStr + "\"" + testAttrStr + ">";
};

Spry.Data.Region.PI.buildOpenTagForContent = function(ele, piName)
{
	if (!ele || !piName)
		return "";

	var dataRefStr = "";

	try
	{
		var contentAttr = ele.attributes.getNamedItem(piName);
		if (contentAttr && contentAttr.value)
			dataRefStr = Spry.Utils.encodeEntities(contentAttr.value);
	}
	catch (e) { dataRefStr = ""; }

	if (!dataRefStr)
	{
		Spry.Debug.reportError(piName + " attribute requires a data reference!\n");
		return "";
	}

	return "<" + Spry.Data.Region.PI.instructions[piName].tagName + " dataref=\"" + dataRefStr + "\">";
};

Spry.Data.Region.PI.buildOpenTag = function(ele, piName)
{
	return "<" + Spry.Data.Region.PI.instructions[piName].tagName + ">";
};

Spry.Data.Region.PI.buildCloseTag = function(ele, piName)
{
	return "</" + Spry.Data.Region.PI.instructions[piName].tagName + ">";
};

Spry.Data.Region.PI.instructions["spry:state"] = { tagName: "spry:state", childrenOnly: false, getOpenTag: Spry.Data.Region.PI.buildOpenTagForState, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:if"] = { tagName: "spry:if", childrenOnly: false, getOpenTag: Spry.Data.Region.PI.buildOpenTagForTest, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:repeat"] = { tagName: "spry:repeat", childrenOnly: false, getOpenTag: Spry.Data.Region.PI.buildOpenTagForRepeat, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:repeatchildren"] = { tagName: "spry:repeat", childrenOnly: true, getOpenTag: Spry.Data.Region.PI.buildOpenTagForRepeat, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:choose"] = { tagName: "spry:choose", childrenOnly: true, getOpenTag: Spry.Data.Region.PI.buildOpenTag, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:when"] = { tagName: "spry:when", childrenOnly: false, getOpenTag: Spry.Data.Region.PI.buildOpenTagForTest, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:default"] = { tagName: "spry:default", childrenOnly: false, getOpenTag: Spry.Data.Region.PI.buildOpenTag, getCloseTag: Spry.Data.Region.PI.buildCloseTag };
Spry.Data.Region.PI.instructions["spry:content"] = { tagName: "spry:content", childrenOnly: true, getOpenTag: Spry.Data.Region.PI.buildOpenTagForContent, getCloseTag: Spry.Data.Region.PI.buildCloseTag };

Spry.Data.Region.PI.orderedInstructions = [ "spry:state", "spry:if", "spry:repeat", "spry:repeatchildren", "spry:choose", "spry:when", "spry:default", "spry:content" ];

Spry.Data.Region.getTokensFromStr = function(str)
{
	// XXX: This will need to be modified if we support
	// tokens that use javascript between the braces!
	if (!str)
		return null;
	return str.match(/{[^}]+}/g);
};

Spry.Data.Region.processDataRefString = function(processingContext, regionStr, dataSetsToUse, isJSExpr)
{
	if (!regionStr)
		return "";

	if (!processingContext && !dataSetsToUse)
		return regionStr;

	var resultStr = "";
	var re = new RegExp("\\{([^\\}:]+::)?[^\\}]+\\}", "g");
	var startSearchIndex = 0;

	while (startSearchIndex < regionStr.length)
	{
		var reArray = re.exec(regionStr);
		if (!reArray || !reArray[0])
		{
			resultStr += regionStr.substr(startSearchIndex, regionStr.length - startSearchIndex);
			return resultStr;
		}

		if (reArray.index != startSearchIndex)
			resultStr += regionStr.substr(startSearchIndex, reArray.index - startSearchIndex);

		var dsName = "";
		if (reArray[0].search(/^\{[^}:]+::/) != -1)
			dsName = reArray[0].replace(/^\{|::.*/g, "");

		var fieldName = reArray[0].replace(/^\{|.*::|\}/g, "");
		var row = null;

		if (processingContext)
		{
			var dsContext = processingContext.getDataSetContext(dsName);

			if (fieldName == "ds_RowNumber")
			{
				resultStr += dsContext.getRowIndex();
				row = null;
			}
			else if (fieldName == "ds_RowNumberPlus1")
			{
				resultStr += (dsContext.getRowIndex() + 1);
				row = null;
			}
			else if (fieldName == "ds_RowCount")
			{
				resultStr += dsContext.getNumRows();
				row = null;
			}
			else if (fieldName == "ds_UnfilteredRowCount")
			{
				resultStr += dsContext.getNumRows(true);
				row = null;
			}
			else if (fieldName == "ds_CurrentRowNumber")
			{
				var ds = dsContext.getDataSet();
				resultStr += ds.getRowNumber(ds.getCurrentRow());
				row = null;
			}
			else if (fieldName == "ds_CurrentRowID")
			{
				var ds = dsContext.getDataSet();
				resultStr += "" + ds.getCurrentRowID();
				row = null;
			}
			else if (fieldName == "ds_EvenOddRow")
			{
				resultStr += (dsContext.getRowIndex() % 2) ? Spry.Data.Region.evenRowClassName : Spry.Data.Region.oddRowClassName;
				row = null;
			}
			else if (fieldName == "ds_SortOrder")
			{
				resultStr += dsContext.getDataSet().getSortOrder();
				row = null;
			}
			else if (fieldName == "ds_SortColumn")
			{
				resultStr += dsContext.getDataSet().getSortColumn();
				row = null;
			}
			else
				row = processingContext.getCurrentRowForDataSet(dsName);
		}
		else
		{
			var ds = dsName ? dataSetsToUse[dsName] : dataSetsToUse[0];
			if (ds)
				row = ds.getCurrentRow();
		}

		if (row)
			resultStr += isJSExpr ? Spry.Utils.escapeQuotesAndLineBreaks("" + row[fieldName]) : row[fieldName];

		if (startSearchIndex == re.lastIndex)
		{
	

			var leftOverIndex = reArray.index + reArray[0].length;
			if (leftOverIndex < regionStr.length)
				resultStr += regionStr.substr(leftOverIndex);

			break;
		}

		startSearchIndex = re.lastIndex;
	}

	return resultStr;
};

Spry.Data.Region.strToDataSetsArray = function(str, returnRegionNames)
{
	var dataSetsArr = new Array;
	var foundHash = {};

	if (!str)
		return dataSetsArr;

	str = str.replace(/\s+/g, " ");
	str = str.replace(/^\s|\s$/g, "");
	var arr = str.split(/ /);


	for (var i = 0; i < arr.length; i++)
	{
		if (arr[i] && !Spry.Data.Region.PI.instructions[arr[i]])
		{
			try {
				var dataSet = eval(arr[i]);

				if (!foundHash[arr[i]])
				{
					if (returnRegionNames)
						dataSetsArr.push(arr[i]);
					else
						dataSetsArr.push(dataSet);
					foundHash[arr[i]] = true;
				}
			}
			catch (e) { /* Spry.Debug.trace("Caught exception: " + e + "\n"); */ }
		}
	}

	return dataSetsArr;
};

Spry.Data.Region.DSContext = function(dataSet, processingContext)
{
	var m_dataSet = dataSet;
	var m_processingContext = processingContext;
	var m_curRowIndexArray = [ { rowIndex: -1 } ]; // -1 means return whatever the current row is inside the data set.
	var m_parent = null;
	var m_children = [];

	// Private Methods:

	function getInternalRowIndex() { return m_curRowIndexArray[m_curRowIndexArray.length - 1].rowIndex; }

	// Public Methods:
	this.resetAll = function() { m_curRowIndexArray = [ { rowIndex: m_dataSet.getCurrentRow() } ] };
	this.getDataSet = function() { return m_dataSet; };
	this.getNumRows = function(unfiltered)
	{
		var data = this.getCurrentState().data;
		return data ? data.length : m_dataSet.getRowCount(unfiltered);
	};
	this.getData = function()
	{
		var data = this.getCurrentState().data;
		return data ? data : m_dataSet.getData();
	};
	this.setData = function(data)
	{
		this.getCurrentState().data = data;
	}
	this.getCurrentRow = function()
	{
		if (m_curRowIndexArray.length < 2 || getInternalRowIndex() < 0)
			return m_dataSet.getCurrentRow();

		var data = this.getData();
		var curRowIndex = getInternalRowIndex();

		if (curRowIndex < 0 || curRowIndex > data.length)
		{
			Spry.Debug.reportError("Invalid index used in Spry.Data.Region.DSContext.getCurrentRow()!\n");
			return null;
		}

		return data[curRowIndex];
	};
	this.getRowIndex = function()
	{
		var curRowIndex = getInternalRowIndex();
		if (curRowIndex >= 0)
			return curRowIndex;

		return m_dataSet.getRowNumber(m_dataSet.getCurrentRow());
	};
	this.setRowIndex = function(rowIndex)
	{
		this.getCurrentState().rowIndex = rowIndex;

		var data = this.getData();
		var numChildren = m_children.length;
		for (var i = 0; i < numChildren; i++)
			m_children[i].syncDataWithParentRow(this, rowIndex, data);
	};
	this.syncDataWithParentRow = function(parentDSContext, rowIndex, parentData)
	{
		var row = parentData[rowIndex];
		if (row)
		{
			nestedDS = m_dataSet.getNestedDataSetForParentRow(row);
			if (nestedDS)
			{
				var currentState = this.getCurrentState();
				currentState.data = nestedDS.getData();
				currentState.rowIndex = nestedDS.getCurrentRowNumber();

				var numChildren = m_children.length;
				for (var i = 0; i < numChildren; i++)
					m_children[i].syncDataWithParentRow(this, currentState.rowIndex, currentState.data);
			}
		}
	};
	this.pushState = function()
	{
		var curState = this.getCurrentState();
		var newState = new Object;
		newState.rowIndex = curState.rowIndex;
		newState.data = curState.data;

		m_curRowIndexArray.push(newState);

		var numChildren = m_children.length;
		for (var i = 0; i < numChildren; i++)
			m_children[i].pushState();
	};
	this.popState = function()
	{
		if (m_curRowIndexArray.length < 2)
		{
			// Our array should always have at least one element in it!
			Spry.Debug.reportError("Stack underflow in Spry.Data.Region.DSContext.popState()!\n");
			return;
		}

		var numChildren = m_children.length;
		for (var i = 0; i < numChildren; i++)
			m_children[i].popState();

		m_curRowIndexArray.pop();
	};
	this.getCurrentState = function()
	{
		return m_curRowIndexArray[m_curRowIndexArray.length - 1];
	};
	this.addChild = function(childDSContext)
	{
		var numChildren = m_children.length;
		for (var i = 0; i < numChildren; i++)
		{
			if (m_children[i] == childDSContext)
				return;
		}
		m_children.push(childDSContext);
	};
};

Spry.Data.Region.ProcessingContext = function(region)
{
	this.region = region;
	this.dataSetContexts = [];

	if (region && region.dataSets)
	{
		var dsArray = region.dataSets.slice(0);
		var dsArrayLen = dsArray.length;
		for (var i = 0; i < dsArrayLen; i++)
		{
			var ds = region.dataSets[i];
			while (ds && ds.getParentDataSet)
			{
				var doesExist = false;
				ds = ds.getParentDataSet();
				if (ds && this.indexOf(dsArray, ds) == -1)
					dsArray.push(ds);
			}
		}

		for (i = 0; i < dsArray.length; i++)
			this.dataSetContexts.push(new Spry.Data.Region.DSContext(dsArray[i], this));

		var dsContexts = this.dataSetContexts;
		var numDSContexts = dsContexts.length;

		for (i = 0; i < numDSContexts; i++)
		{
			var dsc = dsContexts[i];
			var ds = dsc.getDataSet();
			if (ds.getParentDataSet)
			{
				var parentDS = ds.getParentDataSet();
				if (parentDS)
				{
					var pdsc = this.getDataSetContext(parentDS);
					if (pdsc) pdsc.addChild(dsc);
				}
			}
		}
	}
};

Spry.Data.Region.ProcessingContext.prototype.indexOf = function(arr, item)
{


	if (arr)
	{
		var arrLen = arr.length;
		for (var i = 0; i < arrLen; i++)
			if (arr[i] == item)
				return i;
	}
	return -1;
};

Spry.Data.Region.ProcessingContext.prototype.getDataSetContext = function(dataSet)
{
	if (!dataSet)
	{

		if (this.dataSetContexts.length > 0)
			return this.dataSetContexts[0];
		return null;
	}

	if (typeof dataSet == 'string')
	{
		try { dataSet = eval(dataSet); } catch (e) { dataSet = null; }
		if (!dataSet)
			return null;
	}

	for (var i = 0; i < this.dataSetContexts.length; i++)
	{
		var dsc = this.dataSetContexts[i];
		if (dsc.getDataSet() == dataSet)
			return dsc;
	}

	return null;
};

Spry.Data.Region.ProcessingContext.prototype.getCurrentRowForDataSet = function(dataSet)
{
	var dsc = this.getDataSetContext(dataSet);
	if (dsc)
		return dsc.getCurrentRow();
	return null;
};

Spry.Data.Region.Token = function(tokenType, dataSet, data, regionStr)
{
	var self = this;
	this.tokenType = tokenType;
	this.dataSet = dataSet;
	this.data = data;
	this.regionStr = regionStr;
	this.parent = null;
	this.children = null;
};

Spry.Data.Region.Token.prototype.addChild = function(child)
{
	if (!child)
		return;

	if (!this.children)
		this.children = new Array;

	this.children.push(child);
	child.parent = this;
};

Spry.Data.Region.Token.LIST_TOKEN                   = 0;
Spry.Data.Region.Token.STRING_TOKEN                 = 1;
Spry.Data.Region.Token.PROCESSING_INSTRUCTION_TOKEN = 2;
Spry.Data.Region.Token.VALUE_TOKEN                  = 3;

Spry.Data.Region.Token.PIData = function(piName, data, jsExpr, regionState)
{
	var self = this;
	this.name = piName;
	this.data = data;
	this.jsExpr = jsExpr;
	this.regionState = regionState;
};

Spry.Utils.addLoadListener(function() { setTimeout(function() { Spry.Data.initRegions(); }, 0); });