function createREQ()
{
	var req = false;
	try {
	    req = new XMLHttpRequest(); // firefox, safari, …
	} catch (err1) {
    try {
	      req = new ActiveXObject("Msxml2.XMLHTTP"); // sommige IE
	  }
	  catch (err2) {
      try {
	      req = new ActiveXObject("Microsoft.XMLHTTP"); // meeste IE
	    }
	    catch (err3) {
	      req = false;
	      alert("Deze browser ondersteunt geen Ajax.");
	    }
	  }
	}
  return req;
}

function sorteerAlbums(optie,reis)
{
	var optie = optie;
	var reis = reis;
	
	var div = document.getElementById("thumbs");
	var div_sorteer = document.getElementById("sorteer_album");
	
	var http = createREQ();
	var rand = parseInt(Math.random()*999999);

	var url = "ajax/fotoAlbum.php?rand="+rand+"&optie="+optie+"&album="+reis;

		
		http.onreadystatechange = function()
		{
			var resultaat = http.responseText;

			if(http.readyState == 4)
			{
				div.innerHTML = resultaat;

			}
			else
				div.innerHTML = "<p>Laden...</p>";
		}

		http.open("GET", url);
		http.send(null);
}