function getHTTPObject() { 
	var xmlhttp; 
	if(window.XMLHttpRequest){
		xmlhttp = new XMLHttpRequest(); 
  	}else if (window.ActiveXObject){
  		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
    	if (!xmlhttp){ 
        	xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); 
    	} 
	} 
  	
	return xmlhttp; 
 } 
var http = getHTTPObject(); // We create the HTTP Object