// <![CDATA[
var CHECKER = null;
// Initialisieren
function UCHECK_system(){
	if (window.XMLHttpRequest) {
	  CHECKER = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
	  try {
		CHECKER = new ActiveXObject("Msxml2.XMLHTTP");
	  } catch (ex) {
		try {
		  CHECKER = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (ex) {
		}
	  }
	}
}
// Statusabfrage
function UCHECK_checkstat() {
  if (CHECKER.readyState == 4) {
    var checkstatX = document.getElementById("UCHECK");
    checkstatX .innerHTML = CHECKER.responseText;
  }
}
// Aufrufen
function UCHECK() {
  var untemp = document.getElementById("user").value;  // Name vom Formularfeld  "user"
  var checkstatX  = document.getElementById("UCHECK");
  checkstatX .innerHTML = '<img src="loading.gif" alt="Lade..." />'; // Lade Grafik
  CHECKER.open("GET", "ucheck.php?usernamecheck=" + untemp); // Daten holen
  CHECKER.onreadystatechange = UCHECK_checkstat;
  CHECKER.send(null);
}
// Script laden
var checkstatX = UCHECK_system();
// ]]>