function expand(thistag, tag) {
   var styleObj=document.getElementById(thistag).style;
   var el = document.getElementById(tag);

   if (styleObj.display=='none')
   {
   	styleObj.display='';
	  el.innerHTML = 'less info <img src="images/icons/collapse.gif" align="absmiddle" width="17" height="16" alt="more info" />';
   }
   else {
   	styleObj.display='none';
	  el.innerHTML = 'more info <img src="images/icons/expand.gif" align="absmiddle" width="17" height="16" alt="more info" />';
   }
}