function changeLanguage(select)
    {
      var wert = select.options[select.options.selectedIndex].value;
      var url = 'index.php?language=' + wert;
      location.href= url;
    }
    
    function openNewWindow(page)
    {
      if (page == "terms")
      {
        window.open("popup/terms.php", "Zweitfenster", "width=500,height=400,left=100,top=200, scrollbars=yes, resizable=yes");
      }
    }