// Version 1.9.1
function CSIManager()
{
	if (CSIManager.caller != CSIManager.getInstance)
	{
		if((navigator.userAgent.indexOf('Safari')==-1) && (navigator.userAgent.indexOf('Opera')==-1))
		{
			throw new Error("There is no public constructor for CSIManager.");
		}
	}

	this.CSIObjects = new Array();
	this.delayedCSIList = new Array();
	this.useDelayedCSI = false;
	this.numberofRequests = 0;
	var currTime = new Date();
	this.iframeOffset=0;
	
	var localUserAgent = navigator.userAgent.toLowerCase();
	if((localUserAgent.indexOf('msie')>-1) && (localUserAgent.indexOf('mac')>-1))
	{
		this.useDelayedCSI = true;
	}
	
	this.dojoSupport = (typeof dojo=="undefined")?false:true;
	this.prototypeSupport = (typeof Prototype=="undefined")?false:true;
	this.noFramework = (!this.dojoSupport && !this.prototypeSupport)?true:false;
	
	var csiMgr = this;
	var csiManagerOnLoad = function()
	{
		var lastDiv = document.createElement("div");
		lastDiv.setAttribute("id","csimanagerdiv");
		document.body.appendChild(lastDiv);
		var lastDiv = document.createElement("div");
		lastDiv.setAttribute("id","csimanagerdivdelayed");
		document.body.appendChild(lastDiv);
		csiMgr.useDelayedCSI = true;
	}
	
	var csiManagerShow = function(evt)
	{
		if(evt.persisted)
		{
			window.setTimeout('CSIManager.getInstance().delayedProcessing();',2000);
		}
	}
	
	if (this.dojoSupport) dojo.addOnLoad(csiManagerOnLoad);
	if (this.prototypeSupport) Event.observe(window, 'load', csiManagerOnLoad);
	if (this.prototypeSupport) Event.observe(window, 'pageshow', csiManagerShow);
	if (this.noFramework)
	{
		if (window.addEventListener) // Firefox/DOm
		{
			window.addEventListener("load", csiManagerOnLoad, false);
			window.addEventListener("pageshow", csiManagerShow, false);
		}
		else if (window.attachEvent) // IE
		{
			window.attachEvent("onload", csiManagerOnLoad);
		}
		else // Older
		{
			var tempOnLoad = null;
			if (window.onload) tempOnLoad = window.onload;
			window.onload = function() 
			{
				csiManagerOnLoad();
				if (tempOnLoad!=null) tempOnLoad();
			}
		}
	}
}

CSIManager.__instance__ = null;  //define the static property

CSIManager.getInstance = function () 
{
	if (this.__instance__ == null) 
	{
		this.__instance__ = new CSIManager();
	}
	return this.__instance__;
}

CSIManager.prototype.call = function (url, args, domId, funcObj, breakCache, overrideID)
{
	this.numberofRequests++;
	var internalDomId = 'csi'+(this.iframeOffset+this.numberofRequests);
	if(overrideID)
	{
		internalDomId = overrideID;
	}
	var domList = new Array();
	var functionList = new Array();
	if(url.indexOf(document.domain)==-1 && url.indexOf('http') > -1) { return false;}
	if(domId.join)
	{
		domList = domId;
	}
	else
	{
		domList.push(domId);
	}
	
	if(funcObj)
	{
		if(funcObj.join)
		{
			functionList = funcObj;
		}
		else
		{
			functionList.push(funcObj);
		}
	}
	this.CSIObjects[internalDomId] = {
		functionList: functionList,
		dom: domList,
		url: url,
		args: args,
		csiRequestNum:this.numberofRequests,
		disableCache: breakCache
	};
	
	var newCSI = new Object();
	newCSI.src = url;
	newCSI.id  = internalDomId;
	newCSI.domId  = domList;
	newCSI.args = args;
	newCSI.breakCache = breakCache;
	newCSI.csiRequestNum=this.numberofRequests;
	this.delayedCSIList[this.delayedCSIList.length]=newCSI;
	
	var today = new Date();
	var currTime = today.getTime()%60;
	var iframeArgs = ( breakCache ) ? 'time='+currTime : '';
	if (args)
	{
		iframeArgs = ( iframeArgs ) ? iframeArgs+'&' : '';
		iframeArgs+= args;
	}
	
	try
	{
		if (funcObj)
		{
			var xhrObject = null;
			if (this.dojoSupport)
			{
				try
				{
					if (navigator.userAgent.toLowerCase().indexOf("msie 7.0")!=-1) throw new Error("NoDojoSupport");
					var bindArgs = {
						url:		url+'?'+iframeArgs+'&csiID='+internalDomId,
						mimetype:	"text/html",
						transport:	"IframeTransport"
					};
					xhrObject = dojo.io.bind(bindArgs);
				}
				catch(err)
				{
					throw new Error("DojoFailure");
				}
			}
			else if (this.prototypeSupport)
			{
				try
				{
					if (navigator.userAgent.toLowerCase().indexOf("safari")!=-1) throw new Error("SafariCrossDomainFailure");
					var csiMgr = this;
					xhrObject = new Ajax.Request(
						url,
						{
							method:		"get",
							parameters:	iframeArgs+"&csiID="+internalDomId,
							onComplete: function(response) 
										{
											// Response must be either text/xml or text/plain.
											// Using text/plain, and doing string manipulation to
											// turn into JSON.
											if(response && response.responseText && response.responseText.indexOf('<textarea id="jsCode">')!=-1)
											{
												var startStr = '<textarea id="jsCode">';
												var startPos = response.responseText.indexOf(startStr)+startStr.length;
												var myCode = response.responseText.slice(startPos,response.responseText.indexOf('</textarea>'));
												var obj = eval('('+myCode+')');
												csiMgr.callBackJS(obj,internalDomId);
											}
										},
							onException:function(x,o)
										{
											throw new Error("PrototypeException for url ["+url+"]: "+o.messageText);
										},
							onFailure:	function(x,o)
										{
											throw new Error("PrototypeFailure");
										}
						}
					);
				}
				catch(err)
				{
					throw new Error("PrototypeFailure");
				}
			}
			else 
			{
				throw new Error("NoXHRFramework");
			}
		}
		else 
		{
			throw new Error("NoCallBackFunction");
		}
	}
	catch(err)
	{

		if (this.useDelayedCSI) 
		{
			var realIframeUrl=url+"?"+iframeArgs+"&csiID="+internalDomId;
			var iframeObj = document.createElement('iframe');
			iframeObj.setAttribute('src',realIframeUrl );
			iframeObj.setAttribute('id','csiDataIframe'+internalDomId );
			iframeObj.setAttribute('name','csiDataIframe'+internalDomId );
			iframeObj.setAttribute('width','10');
			iframeObj.setAttribute('height','10');
			iframeObj.setAttribute('style','visibility:hidden;position:absolute;top:0px;left:-100px;');
			iframeObj.style.top='0px';
			iframeObj.style.left='-100px';
			iframeObj.style.position='absolute';
			var containerDiv = document.createElement('div');
			containerDiv.setAttribute('id','csiIframeObjs'+internalDomId);
			containerDiv.appendChild(iframeObj);
			if(document.getElementById("csimanagerdiv"))
			{
				document.getElementById("csimanagerdiv").appendChild(containerDiv);
				// This is a hack to work around IE not wanting to set iframe's src reliably after the dom has been loaded
				if(navigator.userAgent.indexOf('MSIE')!=-1)
				{
					window.setTimeout("var tmpIframObj=document.getElementById('csiDataIframe"+internalDomId+"');tmpIframObj.src=tmpIframObj.getAttribute('src');tmpIframObj.position='absolute';tmpIframObj.style.left='-100px';",500)
				}
			}
		}
		else
		{
			var iframeHtmlSrc='<div id="csiIframeObjs'+internalDomId+'"><iframe src="'+url+'?'+iframeArgs+'&csiID='+internalDomId+'" name="csiDataIframe'+internalDomId+'" id="csiDataIframe'+internalDomId+'" width="10" height="10" style="visibility:hidden;position:absolute;top:0px;left:-100px;"></iframe></div>';
			document.write(iframeHtmlSrc);
		}
	}
}

CSIManager.prototype.callBackHtml = function(html, id)
{
	var htmlContainerObj = false;
	if(document.getElementById) 
	{ 
		htmlContainerObj = document.getElementById( id ); 
		if(!htmlContainerObj)
		{
			if(this.CSIObjects[id] && this.CSIObjects[id].dom)
			{
				id = this.CSIObjects[id].dom;
				htmlContainerObj = document.getElementById( id ); 
			}
		}
	}
	else if(document.all) 
	{ 
		htmlContainerObj = document.all[id];
		if(!htmlContainerObj)
		{
			if(this.CSIObjects[id] && this.CSIObjects[id].dom)
			{
				id = this.CSIObjects[id].dom;
				htmlContainerObj = document.all[ id]; 
			}
		}
	}
	if(htmlContainerObj)
	{
		htmlContainerObj.innerHTML = html;
	}
	//force a refresh of the content area
	var htmlContentArea = 0;//document.body;
	if(htmlContentArea)
	{
		var previousTopVal = htmlContentArea.style.top || '0px';
		htmlContentArea.style.top = '1px';
		htmlContentArea.style.top = previousTopVal;
	}
}

CSIManager.prototype.callBackJS = function(jsonObj, csiID)
{
	if( this.CSIObjects[csiID] )
	{
		var functionList = this.CSIObjects[csiID].functionList;
		var domList = this.CSIObjects[csiID].dom;
		if(functionList)
		{
			var functionLength = functionList.length;
			var domListLength = domList.length;
			if(functionLength!=domListLength)
			{
				if(domListLength<functionLength)
				{
					var lastDomID = domList[domListLength-1];
					for(var i=domListLength;i<functionLength;i++)
					{
						domList.push(lastDomID);
					}
					domListLength = domList.length;
				}
				else
				{
					var lastFunctionObj = functionList[functionLength-1];
					for(var i=functionLength;i<domListLength;i++)
					{
						functionList.push(lastFunctionObj);
					}
					functionLength = functionList.length;
				}
			}
	
			for(var fCounter=0;fCounter<functionList.length;fCounter++)
			{
				var funcCall = functionList[ fCounter];
				if(funcCall)
				{
					this.callBackHtml(funcCall(jsonObj, domList[ fCounter]), domList[ fCounter] );
				}
			}
			this.CSIObjects[csiID]= '';
		}
	}
}

CSIManager.prototype.delayedProcessing = function()
{
	if(document.body && document.body.innerHTML && this.useDelayedCSI)
	{
		var iframeOwner = document.getElementById( 'csimanagerdivdelayed' ) || document.all[ 'csimanagerdivdelayed' ];
		var iframeHtmlSrc = '';
		
		for(var incCounter=0;incCounter<this.delayedCSIList.length;incCounter++)
		{
			var src = this.delayedCSIList[incCounter].src;
			var id = this.delayedCSIList[incCounter].id;
			var today = new Date();
			var breakCache = this.delayedCSIList[incCounter].breakCache;
			var currTime = today.getTime() % 60;
			var args = ( breakCache ) ? '&time='+currTime : '';
			if(this.delayedCSIList[incCounter].args)
			{
				args=args+'&'+this.delayedCSIList[incCounter].args;
			}
			
			iframeHtmlSrc+='<iframe src="'+src+'?csiID='+id+args+'" name="csiDataIframe'+id+'" id="csiDataIframe'+id+'" width="10" height="10" style="visibility:hidden;position:absolute;top:0px;left:-100px;"></iframe>';
		}
		if(iframeOwner)
		{
			iframeOwner.innerHTML=iframeHtmlSrc;
		
		}
	}
}
CSIManager.getInstance();