function collexp(ids,im)
{
  d=document;
  el=d.getElementsByTagName('UL');
  for(i=0;i<el.length;i++)
    if (el[i].id==ids) 
      { if (el[i].className=="collapsed") 
        { el[i].className="expanded"; 
          im.src="/images/minus.gif"; 
        } 
        else 
        { el[i].className="collapsed";
          im.src="/images/plus.gif"; 
        } 
        return (0==1);
      }
}

minus = new Image();
minus.src = "/images"+"/minus.gif";
plus = new Image();
plus.src = "/images"+"/plus.gif";