ajax 新建xmlHttpRequest对象有关问题

ajax 新建xmlHttpRequest对象问题 - Web 开发 / Ajax
var xmlHttp;
function createXmlHttpRequest() {
//1、创建xmlHttp对象
if (window.ActiveXObject) {
var activeXObjectName = ["Microsoft.XMLHTTP", "Msxml2.XMLHTTP"];
// for(var i = 0;i<activeXObjectName.length;i++)
// {
//alert("ActiveObject");
//try
//{
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
//return ;
//}catch(e)
//{
//}
// }
alert("ActiveObject==" + xmlHttp);
} else {
if (window.XMLHttpRequest) {
//IE7 IE8 fireforx...
alert("xmlHttpRequest");
xmlHttp = new XMLHttpRequest();
}
}
}

红色字在JS中提示找不到。。xmlHttp对象就新建不了了。各位大哥帮个忙呀。。小弟在线等 。。急呀！！！！

[解决办法]

JScript code

function ajaxFunction() { var xmlHttp;  try    {   // Firefox, Opera 8.0+, Safari    xmlHttp=new XMLHttpRequest();    } catch (e)    {  // Internet Explorer   try      {      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");      }   catch (e)      {      try         {         xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");         }      catch (e)         {         alert("您的浏览器不支持AJAX！");         return false;         }      }    } }</script>
[解决办法]
try {
 xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
 try {
   xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
 } catch (e2) {
   xmlHttp = false;
 }
}

[解决办法]
if (window.XMLHttpRequest) { // Mozilla, Safari,...
     http_request = new XMLHttpRequest();
   } else if (window.ActiveXObject) { // IE
     try {
       http_request = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
       try {
         http_request = new ActiveXObject("Microsoft.XMLHTTP");
       } catch (e) {}
     }
   }

[解决办法]
这是从IBM官方网站上COPY来的代码，我一直在用，一直没问题
JScript code
function GetHttpRequest() {    var xmlHttp = false;    /*@cc_on@*/    /*@if (@_jscript_version >= 5)    try {        xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");    } catch (e) {        try {            xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");        } catch (e2) {            xmlHttp = false;        }    }    @end@*/    if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {        xmlHttp = new XMLHttpRequest();    }    return xmlHttp;}