if (document.images) {


/* topnav rollovers */

		lectureoff = new Image();
		lectureoff.src = "images/julius_nav_lecture_off.gif";
		
	
		lectureon = new Image();
		lectureon.src = "images/julius_nav_lecture_over.gif";

		
		speakersoff = new Image();
		speakersoff.src = "images/julius_nav_speakers_off.gif";
			
		speakerson = new Image();
		speakerson.src = "images/julius_nav_speakers_over.gif";

		
		juliusoff = new Image();
		juliusoff.src = "images/julius_nav_julius_off.gif";
		
		juliuson = new Image();
		juliuson.src = "images/julius_nav_julius_over.gif";

		
		ticketsoff = new Image();
		ticketsoff.src = "images/julius_nav_tickets_off.gif";
		
		ticketson = new Image();
		ticketson.src = "images/julius_nav_tickets_over.gif";


		directionsoff = new Image();
		directionsoff.src = "images/julius_nav_directions_off.gif";
	
		directionson = new Image();
		directionson.src = "images/julius_nav_directions_over.gif";


		downloadsoff = new Image();
		downloadsoff.src = "images/julius_nav_downloads_off.gif";
	
		downloadson = new Image();
		downloadson.src = "images/julius_nav_downloads_over.gif";


		storeoff = new Image();
		storeoff.src = "images/julius_nav_store_off.gif";
	
		storeon = new Image();
		storeon.src = "images/julius_nav_store_over.gif";
		

	}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}