/** Simple XMLHTTP  songchao create 2007 05 29*/
function Xmopen()
{
  var xmlhttp, bComplete = false;
  try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
  catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
  catch (e) { try { xmlhttp = new XMLHttpRequest(); }
  catch (e) { xmlhttp = false; }}}
  if (!xmlhttp) return null;
  this.loaded = function(sURL, sMethod, sVars, fnDone)
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();

    try {
			  if (sMethod == "GET")
			  {
				xmlhttp.open(sMethod, sURL+"?"+sVars, true);
				sVars = "";
			  }
			  else
			  {
				xmlhttp.open(sMethod, sURL, true);
				xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
				xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
			  }
				xmlhttp.onreadystatechange = function(){
					if (xmlhttp.readyState == 4 && !bComplete)
					{
					bComplete = true;
					fnDone(xmlhttp);
					}
				};
			  xmlhttp.send(sVars);
    	 }
    catch(z) { return false; }
    return true;
  };
  return this;
}