function imgswitch(id,name)
	{
	if (document.images) document.images[id].src = eval(name+".src");
	}

// These defaults should be changed the way it best fits your site
var _POPUP_FEATURES = 'width=595,height=580,location=no,menubar=no,status=no,scrollbars=yes';

function raw_popup(url, target, features)
	{
    // pops up a window containing url optionally named target, optionally having features
    if (isUndefined(features)) features = _POPUP_FEATURES;
    if (isUndefined(target)) target = '_blank';
    var theWindow = window.open(url, target, features);
    theWindow.focus();
    return theWindow;
	}

function link_popup(src, features)
	{
    // to be used in an html event handler as in: <a href="..." onclick="link_popup(this,...)" ...
    // pops up a window grabbing the url from the event source's href
    return raw_popup(src.getAttribute('href'), src.getAttribute('target') || '_blank', features);
	}

function isUndefined(v)
	{
    var undef;
    return v===undef;
	}


// Darstellung der Uhr im Admin-Login
function ticktock() {
   var jetzt = new Date();
   var stunden = jetzt.getHours();
   var minuten = jetzt.getMinutes();
   var sekunden = jetzt.getSeconds();
   if (stunden < 10) stunden = "0"+stunden;
   if (minuten < 10) minuten = "0"+minuten;
   if (sekunden <10) sekunden = "0"+sekunden;
   var zeit = stunden+":"+minuten+":"+sekunden;
   
   if (document.layers) {
      document.layers["uhr"].document.write(zeit);
      document.layers["uhr"].document.close();
   }
   else if (document.all) {
      document.all["uhr"].innerHTML = zeit;
   }
   else if (document.getElementById) {
      document.getElementById("uhr").firstChild.nodeValue = zeit;
   }
}