// JavaScript Document

// ===================================================================

// Author: Matt Kruse <matt@ajaxtoolbox.com>

// WWW: http://www.AjaxToolbox.com/

//

// NOTICE: You may use this code for any purpose, commercial or

// private, without any further permission from the author. You may

// remove this notice from your final code if you wish, however it is

// appreciated by the author if at least my web site address is kept.

//

// You may *NOT* re-distribute this code in any way except through its

// use. That means, you can include it in your product, or your web

// site, or any other form where the code is actually being used. You

// may not put the plain javascript up on your site for download or

// include it in your javascript libFraries for download. 

// If you wish to share this code with others, please just point them

// to the URL instead.

// Please DO NOT link directly to my .js files from your site. Copy

// the files to your server and use them there. Thank you.

// ===================================================================



function AjaxRequest(){var req =new Object();

req.timeout =null;

req.generateUniqueUrl =true;

req.url =window.location.href;

req.method ="GET";

req.async =true;

req.username =null;

req.password =null;

req.parameters =new Object();

req.requestIndex =AjaxRequest.numAjaxRequests++;

req.responseReceived =false;

req.groupName =null;

req.queryString ="";

req.responseText =null;

req.responseXML =null;

req.status =null;

req.statusText =null;

req.aborted =false;

req.xmlHttpRequest =null;

req.onTimeout=null;

req.onLoading=null;

req.onLoaded=null;

req.onInteractive=null;

req.onComplete=null;

req.onSuccess=null;

req.onError=null;

req.onGroupBegin=null;

req.onGroupEnd=null;

req.xmlHttpRequest =AjaxRequest.getXmlHttpRequest();

if(req.xmlHttpRequest==null){return null;}req.xmlHttpRequest.onreadystatechange =

function(){if(req==null || req.xmlHttpRequest==null){return;}if(req.xmlHttpRequest.readyState==1){req.onLoadingInternal(req);}if(req.xmlHttpRequest.readyState==2){req.onLoadedInternal(req);}if(req.xmlHttpRequest.readyState==3){req.onInteractiveInternal(req);}if(req.xmlHttpRequest.readyState==4){req.onCompleteInternal(req);}};

req.onLoadingInternalHandled=false;

req.onLoadedInternalHandled=false;

req.onInteractiveInternalHandled=false;

req.onCompleteInternalHandled=false;

req.onLoadingInternal=

function(){if(req.onLoadingInternalHandled){return;}AjaxRequest.numActiveAjaxRequests++;

if(AjaxRequest.numActiveAjaxRequests==1 && typeof(window['AjaxRequestBegin'])=="function"){AjaxRequestBegin();}if(req.groupName!=null){if(typeof(AjaxRequest.numActiveAjaxGroupRequests[req.groupName])=="undefined"){AjaxRequest.numActiveAjaxGroupRequests[req.groupName] =0;}AjaxRequest.numActiveAjaxGroupRequests[req.groupName]++;

if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==1 && typeof(req.onGroupBegin)=="function"){req.onGroupBegin(req.groupName);}}if(typeof(req.onLoading)=="function"){req.onLoading(req);}req.onLoadingInternalHandled=true;};

req.onLoadedInternal=

function(){if(req.onLoadedInternalHandled){return;}if(typeof(req.onLoaded)=="function"){req.onLoaded(req);}req.onLoadedInternalHandled=true;};

req.onInteractiveInternal=

function(){if(req.onInteractiveInternalHandled){return;}if(typeof(req.onInteractive)=="function"){req.onInteractive(req);}req.onInteractiveInternalHandled=true;};

req.onCompleteInternal=

function(){if(req.onCompleteInternalHandled || req.aborted){return;}req.onCompleteInternalHandled=true;

AjaxRequest.numActiveAjaxRequests--;

if(AjaxRequest.numActiveAjaxRequests==0 && typeof(window['AjaxRequestEnd'])=="function"){AjaxRequestEnd(req.groupName);}if(req.groupName!=null){AjaxRequest.numActiveAjaxGroupRequests[req.groupName]--;

if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==0 && typeof(req.onGroupEnd)=="function"){req.onGroupEnd(req.groupName);}}req.responseReceived =true;

req.status =req.xmlHttpRequest.status;

req.statusText =req.xmlHttpRequest.statusText;

req.responseText =req.xmlHttpRequest.responseText;



req.responseXML =req.xmlHttpRequest.responseXML;

if(typeof(req.onComplete)=="function"){req.onComplete(req);}if(req.xmlHttpRequest.status==200 && typeof(req.onSuccess)=="function"){req.onSuccess(req);}else if(typeof(req.onError)=="function"){req.onError(req);}delete req.xmlHttpRequest['onreadystatechange'];

req.xmlHttpRequest =null;};

req.onTimeoutInternal=

function(){if(req!=null && req.xmlHttpRequest!=null && !req.onCompleteInternalHandled){req.aborted =true;

req.xmlHttpRequest.abort();

AjaxRequest.numActiveAjaxRequests--;

if(AjaxRequest.numActiveAjaxRequests==0 && typeof(window['AjaxRequestEnd'])=="function"){AjaxRequestEnd(req.groupName);}if(req.groupName!=null){AjaxRequest.numActiveAjaxGroupRequests[req.groupName]--;

if(AjaxRequest.numActiveAjaxGroupRequests[req.groupName]==0 && typeof(req.onGroupEnd)=="function"){req.onGroupEnd(req.groupName);}}if(typeof(req.onTimeout)=="function"){req.onTimeout(req);}delete req.xmlHttpRequest['onreadystatechange'];

req.xmlHttpRequest =null;}};

req.process =

function()
{
	if(req.xmlHttpRequest!=null)
	{
		if(req.generateUniqueUrl && req.method=="GET")
		{
			req.parameters["AjaxRequestUniqueId"] = new Date().getTime() + "" + req.requestIndex;
		}
		var content =null;

		for(var i in req.parameters)
		{
			if(req.queryString.length>0)
			{
				req.queryString +="&";
			}
			req.queryString +=encodeURIComponent(i) + "=" + encodeURIComponent(req.parameters[i]);
		}
		
		if(req.method=="GET")
		{
			if(req.queryString.length>0)
			{
				req.url +=((req.url.indexOf("?")>-1)?"&":"?") + req.queryString;
			}
		}
		//---> Refs #749. Change the logic and seperate the query string into post value for making maximum character length unlimited
		if(req.method=="POST")
		{
			if(req.url.indexOf("?") > -1)
			{
				var arr_action = req.url.split("?");
			
				if(arr_action[0] != "" && arr_action[1] != "")
				{
					req.url = arr_action[0];
					req.queryString = arr_action[1];
				}
			}
		}
		
		req.xmlHttpRequest.open(req.method,req.url,req.async,req.username,req.password);
		
		if(req.method=="POST")
		{
			if(typeof(req.xmlHttpRequest.setRequestHeader)!="undefined")
			{
				req.xmlHttpRequest.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
			}
			
			content = req.queryString;
		}
		
		if(req.timeout>0)
		{
			setTimeout(req.onTimeoutInternal,req.timeout);
		}
		req.xmlHttpRequest.send(content);
	}
};

req.handleArguments =

function(args){for(var i in args){if(typeof(req[i])=="undefined"){req.parameters[i] =args[i];}else{req[i] =args[i];}}};

req.getAllResponseHeaders =

function(){if(req.xmlHttpRequest!=null){if(req.responseReceived){return req.xmlHttpRequest.getAllResponseHeaders();}alert("Cannot getAllResponseHeaders because a response has not yet been received");}};

req.getResponseHeader =

function(headerName){if(req.xmlHttpRequest!=null){if(req.responseReceived){return req.xmlHttpRequest.getResponseHeader(headerName);}alert("Cannot getResponseHeader because a response has not yet been received");}};

return req;}AjaxRequest.getXmlHttpRequest =function(){if(window.XMLHttpRequest){return new XMLHttpRequest();}else if(window.ActiveXObject){/*@cc_on @*/

/*@if(@_jscript_version >=5)

try{return new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{return new ActiveXObject("Microsoft.XMLHTTP");}catch(E){return null;}}@end @*/}else{return null;}};

AjaxRequest.isActive =function(){return(AjaxRequest.numActiveAjaxRequests>0);};

AjaxRequest.get =function(args){AjaxRequest.doRequest("GET",args);};

AjaxRequest.post =function(args){AjaxRequest.doRequest("POST",args);};

AjaxRequest.doRequest =function(method,args){if(typeof(args)!="undefined" && args!=null){var myRequest =new AjaxRequest();

myRequest.method =method;

myRequest.handleArguments(args);

myRequest.process();}};

AjaxRequest.submit =function(theform, args){var myRequest =new AjaxRequest();

if(myRequest==null){return false;}var serializedForm =AjaxRequest.serializeForm(theform);

myRequest.method =theform.method.toUpperCase();

myRequest.url =theform.action;

myRequest.handleArguments(args);

myRequest.queryString =serializedForm;

myRequest.process();

return true;};

AjaxRequest.serializeForm =function(theform){var els =theform.elements;

var len =els.length;

var queryString ="";

this.addField =

function(name,value){if(queryString.length>0){queryString +="&";}queryString +=encodeURIComponent(name) + "=" + encodeURIComponent(value);};

for(var i=0;i<len;i++){var el =els[i];

if(!el.disabled){switch(el.type){case 'text': case 'password': case 'hidden': case 'textarea':

this.addField(el.name,el.value);

break;

case 'select-one':

if(el.selectedIndex>=0){this.addField(el.name,el.options[el.selectedIndex].value);}break;

case 'select-multiple':

for(var j=0;j<el.options.length;j++){if(el.options[j].selected){this.addField(el.name,el.options[j].value);}}break;

case 'checkbox': case 'radio':

if(el.checked){this.addField(el.name,el.value);}break;}}}return queryString;};

AjaxRequest.numActiveAjaxRequests =0;

AjaxRequest.numActiveAjaxGroupRequests =new Object();

AjaxRequest.numAjaxRequests =0;// -- Standard functions