ajax 解析xml

[chen505586338]

function sendRequestByAjaxPost_Handler_Jquery(xml,trxCallback){	
	//var result = new ActiveXObject("microsoft.XMLDOM");
	//result.loadXML(xml);
 var result;
  if(window.XMLHttpRequest){
                      result = new XMLHttpRequest();
                     
                   }else if(window.ActiveXObject){
                     result = new ActiveXObject("Microsoft.XMLHTTP");
					 result.loadXML(xml);
                     
                    }
alert("result="+result);
	var root = result.documentElement;
	alert("root="+root);
	var recNm= root.childNodes.length;
	if(recNm !=null){
		SYS_MULTI_DATA= new Array(recNm);
		var allElems = root.childNodes;
		//alert(allElems);
		for(var i=0;i<recNm;i++){
			var fldObj = allElems[i];
			var subElems = fldObj.childNodes;
			SYS_MULTI_DATA[i]=new Array(subElems.length);
			for(var j=0;j<subElems.length;j++){
				var fldNvalue = subElems[j].text;
				SYS_MULTI_DATA[i][j]=fldNvalue;
			}
		}
	}
alert("result1111"+result);
	if(trxCallback != null){
		return trxCallback();
	} else {
		return ;
	}	
}

dataType: "text",
之前问过，好像也没解决，就是在360极速模式【ie下可以】下，不能验证重复，之前是

//var result = new ActiveXObject("microsoft.XMLDOM");
	//result.loadXML(xml);

这句，我百度了下换成

if(window.XMLHttpRequest){
                      result = new XMLHttpRequest();
                     
                   }else if(window.ActiveXObject){
                     result = new ActiveXObject("Microsoft.XMLHTTP");
					 result.loadXML(xml);
                     
                    }

，【在ie下，】alert("result="+result);【result= 】,alert("root="+root);root=undedifined,实在看不懂这个。