//var xmlHttp;
function GetXmlHttpObject(){
        var xmlHttp=null;
        try{ xmlHttp=new XMLHttpRequest();}catch (e){ try{ xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}catch (e){xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}}
        return xmlHttp;
    }

function XMLFromString(sXML) {
  if (window.ActiveXObject) {
    var oXML = new ActiveXObject("Microsoft.XMLDOM");
    oXML.loadXML(sXML);
    return oXML;
  } else {
    parser=new DOMParser();
    xmlDoc=parser.parseFromString(sXML,"text/xml");
    return xmlDoc;
  }
}