var xmlHttp
function showHint(url,tab)
{xmlHttp=GetXmlHttpObject()
function stateChanged()
{if(xmlHttp.readyState==4)
{document.getElementById(tab).style.display="";document.getElementById(tab).innerHTML=xmlHttp.responseText;}}
if(xmlHttp==null)
{alert("Your browser does not support AJAX!");return;}
xmlHttp.onreadystatechange=stateChanged;xmlHttp.open("GET",url,true);xmlHttp.send(null);}
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;}
var is={ie:navigator.appName=='Microsoft Internet Explorer',java:navigator.javaEnabled(),ns:navigator.appName=='Netscape',ua:navigator.userAgent.toLowerCase(),version:parseFloat(navigator.appVersion.substr(21))||parseFloat(navigator.appVersion),win:navigator.platform=='Win32'}
is.mac=is.ua.indexOf('mac')>=0;if(is.ua.indexOf('opera')>=0){is.ie=is.ns=false;is.opera=true;}
if(is.ua.indexOf('gecko')>=0){is.ie=is.ns=false;is.gecko=true;}