function AJAXInit()
{
   var AJAX = false;

   if(window.XMLHttpRequest)
   {
      AJAX = new XMLHttpRequest();
   }
   else if(window.ActiveXObject)
   {
      AJAX = new ActiveXObject("Microsoft.XMLHTTP");
   }

   return AJAX;
}
var AJAX = AJAXInit();



function AJAXLoad(file, postdata)
{
   if(AJAX)
   {
      AJAX.open('POST', file, true);
      AJAX.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
      AJAX.onreadystatechange = function()
      {
         if(AJAX.readyState == 1 || AJAX.readyState == 2 || AJAX.readyState == 3)
         {
         }
         if(AJAX.readyState == 4 && AJAX.status == 200)
         {
         }
      }
      AJAX.send(postdata);
   }
}