var xmlHttp;
function SetMenu(str,script){
	//no header request functionality
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Sorry, your browser does not support HTTP Request. Exiting function.");
		return;
	} 

	var url=script + ".php"; //use dynamic file
	url=url+"?menutype="+str; //val pass
	url=url+"&sid="+Math.random(); //id for ajax
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function stateChanged(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		//alert(xmlHttp.responseText);
	}
} 

function GetXmlHttpObject(){ 
	var objXMLHttp=null;
	
	if (window.XMLHttpRequest)
		objXMLHttp=new XMLHttpRequest();
	else if (window.ActiveXObject)
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
	return objXMLHttp
}