if ( document.images ) {
	about_over = new Image(74,21);
	about_over.src = '/images/l2/nav/about_over.gif';
	about_out = new Image(74,21);
	about_out.src = '/images/l2/nav/about.gif';

	programs_over = new Image(78,21);
	programs_over.src = '/images/l2/nav/programs_over.gif';
	programs_out = new Image(78,21);
	programs_out.src = '/images/l2/nav/programs.gif';

	pressroom_over = new Image(94,21);
	pressroom_over.src = '/images/l2/nav/pressroom_over.gif';
	pressroom_out = new Image(94,21);
	pressroom_out.src = '/images/l2/nav/pressroom.gif';

	publications_over = new Image(109,21);
	publications_over.src = '/images/l2/nav/publications_over.gif';
	publications_out = new Image(109,21);
	publications_out.src = '/images/l2/nav/publications.gif';

	join_over = new Image(60,21);
	join_over.src = '/images/l2/nav/join_over.gif';
	join_out = new Image(60,21);
	join_out.src = '/images/l2/nav/join.gif';

	contact_over = new Image(90,21);
	contact_over.src = '/images/l2/nav/contact_over.gif';
	contact_out = new Image(90,21);
	contact_out.src = '/images/l2/nav/contact.gif';
  }
  
  function imgOn(menuItem) {
	if ( (document.images) && (menuItem) ) {
	document.images[menuItem].src = eval( menuItem + '_over.src');
	}
  }
	
  function imgOff(menuItem) {
	if ( (document.images) && (menuItem) ) {
	document.images[menuItem].src = '/images/l2/nav/' + menuItem + '.gif';
	}
  }