load xml data from url

xmlhttp.open("GET", "employee.XML", false);
 xmlhttp.send(null); 
if (xmlhttp.status==200) 
{ xmlDoc = xmlhttp.responseXML; 
var empid= xmlDoc.getElementsByTagName("emp"); 
var total = placeMarks.length; 
var names = xmlDoc.getElementsByTagName("Name");
 var designation= xmlDoc.getElementsByTagName("designation"); 
var phone= xmlDoc.getElementsByTagName("phone"); ..... ; } 
else 
if (xmlhttp.status==404) { alert("XML could not be found"); 
}

$.get(url,function(data){
 xmlDoc = data; 
var empid= xmlDoc.getElementsByTagName("emp"); 
var total = placeMarks.length; 
var names = xmlDoc.getElementsByTagName("Name");
 var designation= xmlDoc.getElementsByTagName("designation");
 var phone= xmlDoc.getElementsByTagName("phone"); });