var xmlhttp

function showSubs(id)
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="ajaxserver.php";
url=url+"?id="+id;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4)
  {
  document.getElementById("test2").innerHTML=xmlhttp.responseText;
  }
}
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}
function showSubCats(id)
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="ajaxserver.php";
url=url+"?subsid="+id;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4)
  {
  document.getElementById("subcats").innerHTML=xmlhttp.responseText;  
  }
}
xmlhttp.open("GET",url,true);
xmlhttp.setRequestHeader( "Content-type","application/x-www-form-urlencoded;charset=utf-8" );
xmlhttp.send(null);
}
function showObSubCats(id)
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="ajaxserver.php";
url=url+"?obsubid="+id;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4)
  {
   document.getElementById("obsubs").innerHTML=xmlhttp.responseText;
  }
}
xmlhttp.open("GET",url,true);
xmlhttp.setRequestHeader( "Content-type","application/x-www-form-urlencoded;charset=utf-8" );
xmlhttp.send(null);
}
function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}