/**
 * Opens a new window without location bar
 *
 * @param filename, String,
 * @param width, Integer,
 * @param height, Integer,
 * @return void
 */
function popup(filename,width,height) {
  fenster = window.open(''+filename,'pop','scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,width='+width+',height='+height+'');
} // end of the 'popup()' function

/**
 * Displays a confirmation box to ask if the action
 * is wanted (mostly deleting links)
 *
 * @param url, String,
 * @return void
 */
function confirmAction(URL, text) {
  check = confirm(text);
  if (check) {
    window.location.href = URL;
  }
} // end of the 'confirm()' function