var offsetx=20
var offsety=0

function InfoBoxAusblenden() {
    document.getElementById('infobox').style.visibility = "hidden";
}

function InfoBoxAnzeigen(e,txt,offsetX,offsetY)
{
      if (offsetX) {offsetx=offsetX;} else {offsetx=20;}
      if (offsetY) {offsety=offsetY;} else {offsety=0;}
      var PositionX = 0;
      var PositionY = 0;
      if (!e) var e = window.event;
      if (e.pageX || e.pageY)
      {
              PositionX = e.pageX;
              PositionY = e.pageY;
      }
      else if (e.clientX || e.clientY)
      {
              PositionX = e.clientX + document.body.scrollLeft;
              PositionY = e.clientY + document.body.scrollTop;
      }
      document.getElementById("text").innerHTML=txt;
      document.getElementById('infobox').style.left = (PositionX+offsetx);
      document.getElementById('infobox').style.top = (PositionY+offsety);
      document.getElementById('infobox').style.visibility = "visible";
}

function winOpen(url, breite, hoehe) {
      // Errechnet Koordinaten, um das Popup zentriert zu platzieren
      links = (screen.width/2)-(breite/2);
      oben = (screen.height/2)-(hoehe/2);
      window.open(url,"popup","height="+hoehe+",width="+breite+",status = no,toolbar = no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = yes,fullscreen = no,top ="+oben+",left ="+links);
}