title: refreshing(resend) xmlhttp requests did not working in IE browser
body: <p><code>w=new Worker("../reloading.js?"+queries);</code>//called to reload(refreshing) with  new xml data and queries having request xml and refreshing seconds and called refresh javascript is </p>
  
  <pre><code>var serverURL = "/Test";
  var UrlToCall = serverURL+""+location.search;//am  using sessions
  var sec = gup("autoRefreshSec");//setting auto refreshing time
  function sendToServer()
  {
  var xmlhttp=new XMLHttpRequest();   
  xmlhttp.onreadystatechange=function(){
        if (xmlhttp.readyState==4 &amp;&amp; xmlhttp.status==200)
          {
              postMessage(xmlhttp.responseText);
          }
        }
  xmlhttp.open("GET",UrlToCall,true);
  xmlhttp.send();
  setTimeout("sendToServer()",(sec*1000));
  }
  sendToServer();
  function gup( name ) {
      name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
      var regexS = "[\\?&amp;]"+name+"=([^&amp;#]*)";
      var regex = new RegExp( regexS );
      var results = regex.exec( location.search );
      if( results == null )
          return "";
      else
          return results[1];
  }
  </code></pre>
  
  <p>this is refreshing javascript file,default autorefresh body as 10seconds.
  its did not working on IE browser(when refreshing of body content only), its working in FireFox and Chrome.
  i did not find any request on server console(but in FireFox i get requests and response in server console).
  need to change anything in code.</p>