function createXmlHttp()
{var xmlhttp=null;try{xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");}
catch(e){try{xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");}
catch(e){xmlhttp=null;}}
if(!xmlhttp&&typeof XMLHttpRequest!='undefined')xmlhttp=new XMLHttpRequest();return xmlhttp;}
function parseXML(text)
{if(window.ActiveXObject)
{var xmlDoc=new ActiveXObject("Microsoft.XMLDOM");xmlDoc.async=false;xmlDoc.loadXML(text);return xmlDoc;}
else if(document.implementation&&document.implementation.createDocument)
{var xmlDoc=document.implementation.createDocument("","",null);var objDOMParser=new DOMParser();xmlDoc=objDOMParser.parseFromString(text,"text/xml");return xmlDoc;}
else
{return null;}}