var xmlHttp
function doAjax1ProductCode(strId)
{ 
	if (strId.length > 0)
		{ 
		
		var url="default_Product_dropdown.asp?sid=" + Math.random() + "&ProId=" + strId
		xmlHttp=GetXmlHttpObject(stateChanged)
		xmlHttp.open("GET", url , true)
		xmlHttp.send(null)
		} 
	else
		{ 
		document.getElementById("txtdefaultpro").innerHTML=""
		} 
} 

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
		{ 
		document.getElementById("txtdefaultpro").innerHTML=xmlHttp.responseText 
		} 
} 

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	
		}	
}