var xmlHttp2;

function showCategory()
{ 
xmlHttp2=GetXmlHttpObject2();
if (xmlHttp2==null)
 {
 alert ("Browser does not support HTTP Request");
 return;
 }
var url="showCategory.php";
//url=url+"?q="+str;
//url=url+"&sid="+Math.random();
xmlHttp2.onreadystatechange=stateChanged2;
xmlHttp2.open("GET",url,true);
xmlHttp2.send(null);
}

function stateChanged2() 
{ 
if (xmlHttp2.readyState==4 || xmlHttp2.readyState=="complete")
 { 
 document.getElementById("txtHintCategory").innerHTML=xmlHttp2.responseText;
 } 
}

function GetXmlHttpObject2()
{
var xmlHttp2=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp2=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp2=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp2=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp2;
}