var xmlhttp;
var desHldr;
var browser=navigator.appName;
var b_version=navigator.appVersion;
var version=parseFloat(b_version);

/*
	function GetXmlHttpObject
	Description: browser check for getting the XmlHttpObject
*/ 	
function GetXmlHttpObject(){
	var objXMLHttp=null;
	if (window.XMLHttpRequest){
	objXMLHttp=new XMLHttpRequest();
	}
	else if (window.ActiveXObject){
	objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	return objXMLHttp;
} 

/*
	function loadAjax
	Description: function to use ajax
	Parameters:
		str = value, id and name needed by the phpFile 		note: only 1 element is supported 
		phpFile = .php file needed
		desObj = destination html object
*/ 
function loadAjax(str, phpFile, desObj){
	xmlhttp=GetXmlHttpObject();
	desHldr = desObj;
	if (xmlhttp==null){
		alert ("Browser does not support HTTP Request");
		return;
	}
	var url=phpFile;
	url=url+"?data="+str;
	xmlhttp.onreadystatechange=statePlaylist;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
}
		
function statePlaylist(){
	if (xmlhttp.readyState==4){
		document.getElementById(desHldr).innerHTML=xmlhttp.responseText;
	}
}