function loadXMLDoc(dname,cfunc)
{
if (window.XMLHttpRequest)
  {
  xhttp=new XMLHttpRequest();
  }
else
  {
  xhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xhttp.onreadystatechange=cfunc;
xhttp.open("GET",dname,true);
xhttp.send();
//return xhttp.responseXML;
}