var xmlHttp;	
var ajax_url;

	function do_load_menu(root_url,mp,file){		
			var url;
			//alert(file);
			if(file=="index.php" || file==""){
				url	= "ajax/menu/load_menu.php?url=" + root_url + "&mp=" + mp;
			}else{
				url= root_url + "ajax/menu/load_menu.php?url=" + root_url + "&mp=" + mp;	
			}
			
			load_menu_handle(url);	
			document.getElementById("hid_mp").value = mp;
			return false;
	}
	
	function load_menu_handle(url){		
		xmlHttp  =  GetXmlHttpObject()
		if (xmlHttp == null){
		 alert ("Browser does not support HTTP Request")
		 return
		 }		
		
		xmlHttp.onreadystatechange = load_menu_ready		
		xmlHttp.open("GET",url,true)		
		xmlHttp.send(null)
	}
	
	function load_menu_ready(){ 
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
			//alert(xmlHttp.responseText);
			document.getElementById("spn_menu").innerHTML = xmlHttp.responseText 				
		 } 
	}