if (document.images) {	

   	home_on= new Image();			home_on.src="images/home2.jpg";  
	home_off= new Image(); 			home_off.src="images/home1.jpg";

   	bio_on= new Image();			bio_on.src="images/bio2.jpg";  
	bio_off= new Image(); 			bio_off.src="images/bio1.jpg";

   	credits_on= new Image();		credits_on.src="images/credits2.jpg";  
	credits_off= new Image(); 		credits_off.src="images/credits1.jpg";

   	film_on= new Image();			film_on.src="images/film2.jpg";  
	film_off= new Image(); 			film_off.src="images/film1.jpg";

   	concerts_on= new Image();		concerts_on.src="images/concerts2.jpg";  
	concerts_off= new Image(); 		concerts_off.src="images/concerts1.jpg";

   	links_on= new Image();			links_on.src="images/links2.jpg";  
	links_off= new Image(); 		links_off.src="images/links1.jpg";

   	contact_on= new Image();		contact_on.src="images/contact2.jpg";  
	contact_off= new Image(); 		contact_off.src="images/contact1.jpg";

   }