function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for (i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if (d.images) { if (!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for (i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0) { d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if (!d) d=document; if ((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if (!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for (i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if (!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for (i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null) {document.MM_sr[j++]=x; if (!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function confirmThis(loc,confirmtext) {
  if (confirm(confirmtext)) {
  	location.href= loc;
  }
}

function mark_all(the_form, box_name, is_checked) {
	for (var i=0; i < the_form.elements.length; i++) {
		if (the_form.elements[i].name == box_name) {
			the_form.elements[i].checked = is_checked;
		}
	}
}

function mark_all_array(the_form, box_names, is_checked) {
	for (var j=0; j < box_names.length; j++) {
		for (var i=0; i < the_form.elements.length; i++) {
			if (the_form.elements[i].name == box_names[j]) {
				the_form.elements[i].checked = is_checked;
			}
		}
	}
}

function popup(page, width, height, name) {

	var tmp;

	if (oPopupWin) {

		// Make sure oPopupWin is empty before
		// calling .close() or we could throw an
		// exception and never set it to null.

		tmp = oPopupWin;
		oPopupWin = null;

		// Only works in IE...  Netscape crashes
		// if you have previously closed it by hand

		if (navigator.appName != "Netscape")
			tmp.close();
	}

	//Open the popup window
	oPopupWin = window.open(page, name, "alwaysRaised=1,dependent=1,height=" + height + ",location=0,menubar=0,personalbar=0,scrollbars=auto,status=0,toolbar=1,width=" + width + ",resizable=0");

	// do not return anything!
	//return !oPopupWin;
}

var oPopupWin;

function characters(max_chars, textfield_id, output_id) {
	var text_value = document.getElementById(textfield_id).value;
	var chars_left = 0;
	if (text_value.length > max_chars) {
		chars_left = 0;
		text_value = text_value.substr(0, max_chars);
		document.getElementById(textfield_id).value = text_value;
	} else {
		chars_left = max_chars - text_value.length;
	}
	document.getElementById(output_id).innerHTML = "noch " + chars_left;
}