JS实现的跨浏览器解析XML文件实例

<script type="text/javascript">
function GetXmlHttpObject() {
  var xmlHttp=null;
  try {
   // Firefox, Opera 8.0+, Safari
   xmlHttp=new XMLHttpRequest();
  } catch (e) {
   // Internet Explorer
   try {
     xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
   } catch (e) {
     xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
   }
 }
 return xmlHttp;
}
function loadXMLDoc(){
 var xmlhttp = GetXmlHttpObject();
 xmlhttp.open("GET","note.xml",false);
 xmlhttp.send();
 xmlDoc=xmlhttp.responseXML;
 return xmlDoc;
}