function showAnswer(answerid,imgid,fholderid) {
  answer = document.getElementById(answerid);
  if (answer.style.display == 'block' || answer.style.display == '') { 
    new Effect.SlideUp(answerid, { duration: 0.5});
    document.getElementById(imgid).src = '/faq_plus.gif';
    $(fholderid).className = 'faq_h';
   }else { 
    new Effect.SlideDown(answerid, { duration: 0.5});
    $(fholderid).className = 'faq_h_s';
    document.getElementById(imgid).src = '/faq_minus.gif';
   }
 }