//Basic Ajax Routine- Author: Dynamic Drive (http://www.dynamicdrive.com)
//Last updated: Jan 15th, 06'

function createAjaxObj(){
var httprequest=false
if (window.XMLHttpRequest){ // if Mozilla, Safari etc
httprequest=new XMLHttpRequest()
if (httprequest.overrideMimeType)
httprequest.overrideMimeType('text/xml')
}
else if (window.ActiveXObject){ // if IE
try {
httprequest=new ActiveXObject("Msxml2.XMLHTTP");
} 
catch (e){
try{
httprequest=new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){}
}
}
return httprequest
}

var ajaxpack=new Object()
ajaxpack.basedomain="http://"+window.location.hostname
ajaxpack.ajaxobj=createAjaxObj()
ajaxpack.filetype="txt"
ajaxpack.divid="content"
ajaxpack.loading="<br><br><center><img src='images/ajax-loader.gif' border='0' /></center>"
ajaxpack.addrandomnumber=0 //Set to 1 or 0. See documentation.

ajaxpack.getAjaxRequest=function(url, parameters, callbackfunc, filetype, divid, loading){
ajaxpack.ajaxobj=createAjaxObj() //recreate ajax object to defeat cache problem in IE
if (ajaxpack.addrandomnumber==1) //Further defeat caching problem in IE?
var parameters=parameters+"&ajaxcachebust="+new Date().getTime()
if (this.ajaxobj){
this.filetype=filetype
this.divid=divid
this.loading=loading
this.ajaxobj.onreadystatechange=callbackfunc
this.ajaxobj.open('GET', url+"?"+parameters+"&rand="+Math.random(), true)
this.ajaxobj.send(null)
}
}

ajaxpack.postAjaxRequest=function(url, parameters, callbackfunc, filetype, divid, loading){
ajaxpack.ajaxobj=createAjaxObj() //recreate ajax object to defeat cache problem in IE
if (this.ajaxobj){
this.filetype=filetype
this.divid=divid
this.loading=loading
this.ajaxobj.onreadystatechange = callbackfunc;
this.ajaxobj.open('POST', url, true);
this.ajaxobj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
this.ajaxobj.setRequestHeader("Content-length", parameters.length);
this.ajaxobj.setRequestHeader("Connection", "close");
this.ajaxobj.send(parameters);
}
}

function processGetPost(){
	var divid=ajaxpack.divid
	var loading=ajaxpack.loading
	document.getElementById(divid).innerHTML=loading;
	var myajax=ajaxpack.ajaxobj
	var myfiletype=ajaxpack.filetype
	if (myajax.readyState == 4){ //if request of file completed
		if (myajax.status==200 || window.location.href.indexOf("http")==-1){ 
			if (myfiletype=="txt")
			{
				document.getElementById(divid).innerHTML=myajax.responseText;
			}
			else
			document.getElementById(divid).innerHTML=myajax.responseXML
		}
	}
	//alert(divid);
}