function MM_swapImgRestore() {
  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() {
  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) {
  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() {
  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 anmeldung_1(){
	document.getElementById(1).style.display = 'block';
	document.getElementById(2).style.display = 'none';
	document.getElementById(3).style.display = 'none';
	document.getElementById(4).style.display = 'none';
}

function anmeldung_2(){
	document.getElementById(1).style.display = 'none';
	document.getElementById(2).style.display = 'block';
	document.getElementById(3).style.display = 'none';
	document.getElementById(4).style.display = 'none';
}

function anmeldung_3(){
	document.getElementById(1).style.display = 'none';
	document.getElementById(2).style.display = 'none';
	document.getElementById(3).style.display = 'block';
	document.getElementById(4).style.display = 'none';
}

function anmeldung_4(){
	document.getElementById(1).style.display = 'none';
	document.getElementById(2).style.display = 'none';
	document.getElementById(3).style.display = 'none';
	document.getElementById(4).style.display = 'block';
}

function popup(w,h,site) {
  x = screen.availWidth/2-w/2;
  y = screen.availHeight/2-h/2;
  var popupWindow = window.open(
     site,'','width='+w+',height='+h+',left='+x+',top='+y+',screenX='+x+',screenY='+y);
  //popupWindow.document.write(site);
}

function clear_field(field){
	if((field.name != 'kdnr')&&(field.name != 'passwort')){
		field.value = "";
	}
	if((field.name == 'kdnr')&&(field.value == 'Account-Nr.')){
		field.value = "";
	}
	if((field.name == 'passwort')&&(field.value == 'Passwort')){
		field.value = "";
	}
}

function switch_field(field){
	field.type = "password";
}