function checkimage(url,id)
{
 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 test = ajaxRequest.responseText;
   document.getElementById(id).value = test;
   document.getElementById('avatarimg').src = test;
  }
 }
 var queryString = "?url=" + url;
 ajaxRequest.open("GET", "http://www.klen.nl/beta/includes/checkimage.php" + queryString, true);
 ajaxRequest.send(null);
}