// www.ctemag.com/bg_selectSubcat09.js
// Created SUN 10/26/08 @ 11:00am by ch - ( cloned from ch_selectSubcatgeories.js )
// Revised WED 10/28/09 @ 12:00am by ch - ( backup = _v05 )

// www.ctemag.com/bg_selectSubcat.js
// Revised TUE 11/03/09 @ 01:30am by ch 

var xmlHttp
function showSubcategories(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="bg_getSubCat.php"
url=url+"?q="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("subcat").innerHTML=xmlHttp.responseText 
 } 
}
function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}