ajax的 responseXML返回接受 asp


            第一个文件   index.asp <script language="javascript"> var xmlHttp = false;    //ajax使用 try {   xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {   try {     xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");   } catch (e2) {     xmlHttp = false;   } } if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {   xmlHttp = new XMLHttpRequest(); } function callserver() {  var url = "index.asp";  xmlHttp.open("POST",url,true);  xmlHttp.onreadystatechange = update;     xmlHttp.setrequestheader("content-type","application/x-www-form-urlencoded");  xmlHttp.send(null); } function update() {  if(xmlHttp.readystate==4)  {   var xmldoc=xmlHttp.responseXML   var info = xmldoc.getElementsByTagName("info")[0].text;   alert(info);  } } callserver(); </script>   第二个   login.asp <% Response.ContentType="text/xml" response.Write("<?xml version='1.0' encoding='GB2312' ?>") response.Write("<root>") response.Write("<info>love you</info>") response.Write("</root>") %>