if (document.images) {
		
			topnav_commercial_on = new Image();
			topnav_commercial_on.src = "images/topnav_commercial_on.jpg";
		
			topnav_commercial_off = new Image();
			topnav_commercial_off.src = "images/topnav_commercial_off.jpg";
		
		
			topnav_narration_on = new Image();
			topnav_narration_on.src = "images/topnav_narration_on.jpg";
		
			topnav_narration_off = new Image();
			topnav_narration_off.src = "images/topnav_narration_off.jpg";
		
		
			topnav_imaging_on = new Image();
			topnav_imaging_on.src = "images/topnav_imaging_on.jpg";
		
			topnav_imaging_off = new Image();
			topnav_imaging_off.src = "images/topnav_imaging_off.jpg";
		
		
			topnav_production_on = new Image();
			topnav_production_on.src = "images/topnav_production_on.jpg";
		
			topnav_production_off = new Image();
			topnav_production_off.src = "images/topnav_production_off.jpg";
		
		
			topnav_video_on = new Image();
			topnav_video_on.src = "images/topnav_video_on.jpg";
		
			topnav_video_off = new Image();
			topnav_video_off.src = "images/topnav_video_off.jpg";
		
		
			topnav_about_on = new Image();
			topnav_about_on.src = "images/topnav_about_on.jpg";
		
			topnav_about_off = new Image();
			topnav_about_off.src = "images/topnav_about_off.jpg";
		
		
			contact_email_on = new Image();
			contact_email_on.src = "images/contact_email_on.jpg";
		
			contact_email_off = new Image();
			contact_email_off.src = "images/contact_email_off.jpg";
			
			Amadeus_tmb_on = new Image();
			Amadeus_tmb_on.src = "images/Amadeus_on.jpg";
		
			Amadeus_tmb_off = new Image();
			Amadeus_tmb_off.src = "images/Amadeus_off.jpg";
			
			
			}
		
		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");
			}
		  }
		}