function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null;
	
	if (navigator.userAgent.indexOf("Opera")>=0) // if OPERA... Oh Well.
	{
		alert("This example doesn't work in Opera");
		return;
	}
	if (navigator.userAgent.indexOf("MSIE")>=0) // if IE.
	{
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) // if IE 5.5.
		{
			strName="Microsoft.XMLHTTP";
		} 
		try
		{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange = handler; // watch for "4" or "complete".
			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; // dislpay the servers response.
		objXmlHttp.onerror=handler; //  display the servers response.
		return objXmlHttp;
	}
} 

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