//创建XML对象
function createXMLHttps(){
var ret = null;
try {ret = new ActiveXObject(‘Msxml2.XMLHTTP‘)}
catch (e) {
try {ret = new ActiveXObject(‘Microsoft.XMLHTTP‘)}
catch (ee) {ret = null}
}
if (!ret&&typeof XMLHttpRequest !=‘undefined‘) ret = new XMLHttpRequest();
return ret;
}