function MM_changeProp(objId,x,theProp,theValue) { //v9.0
  var obj = null; with (document){ if (getElementById)
  obj = getElementById(objId); }
  if (obj){
    if (theValue == true || theValue == false)
      eval("obj.style."+theProp+"="+theValue);
    else eval("obj.style."+theProp+"='"+theValue+"'");
  }
}





function Fenster(name,xPos,yPos){
	var breite = xPos;
	var hoehe = yPos;
	var posX=(screen.availWidth-breite)/2;
	var posY=(screen.availHeight-hoehe)/2;
    window.open(name,"Fenster", "toolbar=no,width="+breite+",height="+hoehe+",directories=no,status=no,scrollbars=auto,resize=no,resizable=no,menubar=no,screenX=" + posX + ",screenY=" + posY + ",left=" + posX + ",top=" + posY);
}