lnk = "";

function ajaxObj() {
  try { 
    xmlHttp=new XMLHttpRequest();
    return xmlHttp;
  }
  catch (e) {
    try {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      return xmlHttp;
    }
    catch (e) {
      try {
        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        return xmlHttp;
      }
      catch (e) {
        return false;
      }
    }
  }
}