function popUp(url,name,width,height,resize,menubar) {
  opt="width="+width+",height="+height+",resizable="+resize+",scrollbars=yes,menubar="+menubar+",toolbar=no,status=no";
  efenster=open(url,name,opt);
  efenster.focus();
}
function setColor(el, bg) {
  if (el.style) el.style.backgroundColor = bg;
}
function checkFormInput(xform,list) {
  var form_elemnt;
  for(i=0;i<list.length;i++) {
    form_element=eval("document."+xform+"."+list[i]);
    if(form_element.value=="") {
      alert("F|r dieses Eingabefeld ist ein entsprechender Wert erforderlich");
      setColor(form_element,'#d0eaf1');
      form_element.focus();
      return(false);
    }
    else {
      setColor(form_element,'#ffffff');
    }
  }
  return(true);
}