// JavaScript Document
//	Setup AJAX connection object
var xmlHttp;

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp = null;
	
	if (navigator.userAgent.indexOf("Opera") >= 0)
	{
		alert("This example doesn't work in Opera"); 
		return; 
	}
	
	if (navigator.userAgent.indexOf("MSIE") >= 0)
	{ 
		var strName="Msxml2.XMLHTTP";
		
		if (navigator.appVersion.indexOf("MSIE 5.5") >= 0)
		{
			strName="Microsoft.XMLHTTP";
		}
		 
		try
		{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler;
			return objXmlHttp;
		} 
		catch(e)
		{ 
			alert("Error. Scripting for ActiveX might be disabled"); 
			return; 
		} 
	}
	 
	if (navigator.userAgent.indexOf("Mozilla") >= 0)
	{
		objXmlHttp = new XMLHttpRequest();
		objXmlHttp.onload = handler;
		objXmlHttp.onerror = handler;
		return objXmlHttp;
	}
}