function GetXmlHttpObject(){
	var xmlHttp=null;
	try{
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	}
	catch (e){
		// Internet Explorer
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	    }
		//catch (e){
		  //  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		//}
		catch (e){      
			try{        
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");        
			}
			catch (e){        
				alert("Your browser does not support AJAX!");        
				return false;        
			}      
		}    
	}
	return xmlHttp;
}