function showForm(divID)
{
  var elem, vis;
  if( document.getElementById ) // this is the standard way
    elem = document.getElementById(divID);
  else if( document.all ) // this is how older msie versions work
      elem = document.all[divID];
  else if( document.layers )// this is how netscape works
    elem = document.layers[divID];
  vis = elem.style;
  // if the style.display contains no value we try to figure it out
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  	vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}