function Bild(url) { //v2.0
      links = (screen.width/2)-(640/2);
      oben = (screen.height/2)-(650/2);
      window.open(url,"_blank","height="+650+",width="+640+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function Message(url) { //v2.0
      links = (screen.width/2)-(640/2);
      oben = (screen.height/2)-(550/2);
      window.open(url,"_blank","height="+550+",width="+640+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function Profil(url) { //v2.0
      links = (screen.width/2)-(640/2);
      oben = (screen.height/2)-(250/2);
      window.open(url,"_blank","height="+250+",width="+640+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function Klaps(url) { //v2.0
      links = (screen.width/2)-(640/2);
      oben = (screen.height/2)-(400/2);
      window.open(url,"_blank","height="+400+",width="+640+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function Tauschbox(url) { //v2.0
      links = (screen.width/2)-(1050/2);
      oben = (screen.height/2)-(800/2);
      window.open(url,"_blank","height="+800+",width="+1050+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function Box(url,breite, hoehe) { //v2.0
      links = (screen.width/2)-(breite/2);
      oben = (screen.height/2)-(hoehe/2);
      window.open(url,"_blank","height="+hoehe+",width="+breite+",status = no,toolbar = no,copyhistory=no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}
function CheckLen(target) {
if (target.value.length > 200) {
target.value = target.value.substring(0,200);
alert("Maximale Zeichenanzahl erreicht.");
} 
// Länge abfragen: AUFRUF in FORM: onKeyUp="CheckLen(this)"
}