function showLoginForm() {
        var formdiv = document.getElementById('loginform_div');
        if (formdiv.style.display == 'inline') {
                formdiv.style.display =  'none';
        } else {
                var offset = window.getScroll();
                //formdiv.style.bottom = '-'+ (offset.y-50) + 'px';
                formdiv.style.top = '300px';
                formdiv.style.display = 'inline';
                document.getElementsByName('frodo')[0].focus();
        }
        return false;
}

function checkForm (formid) {
  var form = document.getElementById(formid);  
  if (form.page_title.value == "") {
    alert("Bitte einen Seitentitel eingeben!");
    form.page_title.focus();
    return false;
  }
}