function ajaxFunction() 
{
 var ajaxRequest;
 try 
 { 
  ajaxRequest = new XMLHttpRequest();
 } 
 catch (e)
 {
  try 
  {
   ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
  } 
  catch (e)
  {
   try
   {
    ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch (e)
   {
    alert("Your browser broke!");
    return false;
   }
  }
 }
 ajaxRequest.onreadystatechange = function()
 {
  if(ajaxRequest.readyState == 4)
  {
   var ajaxDisplay = document.getElementById('ajaxDiv');
   ajaxDisplay.innerHTML = ajaxRequest.responseText;
  }
 }
 var kat = document.getElementById('kat').value;
 var queryString = "?kat=" + kat;
 ajaxRequest.open("GET", "./pcat.php" + queryString, true);
 ajaxRequest.send(null);
 
 }

function ajax2Function() 
{
 var ajaxRequest;
 try 
 { 
  ajaxRequest = new XMLHttpRequest();
 } 
 catch (e)
 {
  try 
  {
   ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
  } 
  catch (e)
  {
   try
   {
    ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch (e)
   {
    alert("Your browser broke!");
    return false;
   }
  }
 }
 ajaxRequest.onreadystatechange = function()
 {
  if(ajaxRequest.readyState == 4)
  {
   var ajaxDisplay = document.getElementById('ajax2Div');
   ajaxDisplay.innerHTML = ajaxRequest.responseText;
  }
 }
 var pkat = document.getElementById('pkat').value;
 var queryString = "?pkat=" + pkat;
 ajaxRequest.open("GET", "./ppcat.php" + queryString, true);
 ajaxRequest.send(null);
}