function switchLanguageOn(lang, elm) {
   if ('selected' != elm.className) {
      elm.firstChild.src = '/direct/css/' + lang + '.gif';
   }
}
function switchLanguageOff(lang, elm) {
   if ('selected' != elm.className) {
      elm.firstChild.src = '/direct/css/' + lang + '_n.gif';
   }
}