var reponse = '';
function createRequestObject(){
	var http = '';
	if (window.XMLHttpRequest){ // Mozilla, Safari, IE7 ...
		http = new XMLHttpRequest();
	}
	else if (window.ActiveXObject){ // Internet Explorer 6
		http = new ActiveXObject("Microsoft.XMLHTTP");
	}
	return http;
} 
function handleAJAXReturn(){
	if (http.readyState == 4){
		if (http.status == 200){
			reponse = http.responseText;
		}
		else{
			alert('error' + http.status);
		}	
	}
}