求火狐中可用的ajax代码，可执行返回的java函数！
网上下了一个，据说可用在火狐中可用，但是实际测试下来好像不行。
现在的这个
function evalhtml(el, htmlCode)//ajax通用调用返回函数
{
//el：是插入的节点；
//htmlCode:是插入的代码
//下面的代码中，if为true部分在IE下是好用的，为false部分似乎无法执行回传的js函数。
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf('msie') >= 0 && ua.indexOf('opera') < 0) {
htmlCode = '<div style="display:none">for IE</div>' + htmlCode;
htmlCode = htmlCode.replace(/<script([^>]*)>/gi,
'<script$1 defer>');
el.innerHTML = htmlCode;
el.removeChild(el.firstChild);
} else {
var el_next = el.nextSibling;
var el_parent = el.parentNode;
el_parent.removeChild(el);
el.innerHTML = htmlCode;
if (el_next) {
el_parent.insertBefore(el, el_next)
} else {
el_parent.appendChild(el);
}
}
}

请大虾指教！

最好是带 插入点/插入代码 的这种函数！

[解决办法]

JScript code

var XMLHttpReq;     function createXMLHttpRequest() {         if(window.XMLHttpRequest) {              XMLHttpReq = new XMLHttpRequest();         } else if (window.ActiveXObject) {              try {                  XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");              } catch (e) {                  try {                      XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");                  } catch (e) {}              }          }  }function findHotGift(num){        var scoreLow = "";        var scoreHigh = "";        scoreLow = "0";        scoreHigh = "20000";        var url1 = "";        if(num!=5){            url1 = "<%=path%>/getHotSaleList.do?gc.scoreLow="+scoreLow+"&gc.scoreHigh="+scoreHigh+"&gc.lastIndex=6&timestamp="+Math.random();        }else{            url1 = "<%=path%>/getHotSaleList.do?gc.scoreLow="+scoreLow+"&gc.lastIndex=6&timestamp="+Math.random();        }      createXMLHttpRequest();        XMLHttpReq.open("POST",url1,true);        XMLHttpReq.setRequestHeader("cache-control","no-cache");        XMLHttpReq.setRequestHeader("Content-Type","application/x-www-form-urlencoded");        XMLHttpReq.onreadystatechange= function(){            retHotGift();        }        XMLHttpReq.send(null);    }    function retHotGift(){        if (XMLHttpReq.readyState == 4) {             if (XMLHttpReq.status == 200) {                 var tagonediv = document.all.Tagonediv;                tagonediv.innerHTML = XMLHttpReq.responseText;            } else {                             }        }    }