function ShowHide() {
  var i,p,v,obj,args=ShowHide.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='s')?'visible':(v=='h')?'hidden':v; }
    obj.visibility=v; }
}