<!--
(document.getElementById) ? dom = true : dom = false;

function hideIt(add) {
  if (dom) {document.getElementById('tip'+add).style.display='none';}
  if (document.layers) {document.layers["tip"+add].display='none';}
 }
function showIt(add) {
 if (dom) {
  if (document.getElementById('tip'+add).style.display=='block') { hideIt(add); }
  else {document.getElementById('tip'+add).style.display='block'} }

 if (document.layers) {
  if (document.layers["tip"+add].display=='block') { hideIt(add); }
  else {document.layers["tip"+add].display='block'}  }
 }
// -->