if (document.images) {

	var home_up = new Image();
	home_up.src = '../images/basiclayoutimages/mainmenu/Home Button.png';
	
	var home_over = new Image();
	home_over.src = '../images/basiclayoutimages/mainmenu/home_lit.png';
/////
	var booksbutton_up = new Image();
	booksbutton_up.src = '../images/basiclayoutimages/mainmenu/Books Button.png';
	
	var booksbutton_over = new Image();
	booksbutton_over.src = '../images/basiclayoutimages/mainmenu/books_lit.png';
/////
	var artworkbutton_up = new Image();
	artworkbutton_up.src = '../images/basiclayoutimages/mainmenu/Artwork Button.png';
	
	var artworkbutton_over = new Image();
	artworkbutton_over.src = '../images/basiclayoutimages/mainmenu/artwork_lit.png';
////
	var authorbutton_up = new Image();
	authorbutton_up.src = '../images/basiclayoutimages/mainmenu/Author Button.png';

	var authorbutton_over = new Image();
	authorbutton_over.src = '../images/basiclayoutimages/mainmenu/author_lit.png';
/////
	var newsbutton_up = new Image();
	newsbutton_up.src = '../images/basiclayoutimages/mainmenu/News Button.png';
	
	var newsbutton_over = new Image();
	newsbutton_over.src = '../images/basiclayoutimages/mainmenu/news_lit.png';
/////
	var extrasbutton_up = new Image();
	extrasbutton_up.src = '../images/basiclayoutimages/mainmenu/Extras Button.png';
	
	var extrasbutton_over = new Image();
	extrasbutton_over.src = '../images/basiclayoutimages/mainmenu/extras_lit.png';
	
	function home_over_button(){
		if (document.images){
			document["home"].src = home_over.src;
		}
	}
	
	function home_up_button(){
		if (document.images){
			document["home"].src = home_up.src;
		}
	}
	
	function books_over_button(){
		if (document.images){
			document["books"].src = booksbutton_over.src;
		}
	}
	
	function books_up_button(){
		if (document.images){
			document["books"].src = booksbutton_up.src;
		}
	}
	
	////
	function artwork_over_button(){
		if (document.images){
			document["artwork"].src = artworkbutton_over.src;
		}
	}
	
	function artwork_up_button(){
		if (document.images){
			document["artwork"].src = artworkbutton_up.src;
		}
	}
	////
	function author_over_button(){
		if (document.images){
			document["author"].src = authorbutton_over.src;
		}
	}
	
	function author_up_button(){
		if (document.images){
			document["author"].src = authorbutton_up.src;
		}
	}
	////
	function news_over_button(){
		if (document.images){
			document["news"].src = newsbutton_over.src;
		}
	}
	
	function news_up_button(){
		if (document.images){
			document["news"].src = newsbutton_up.src;
		}
	}
	////
	function extras_over_button(){
		if (document.images){
			document["extras"].src = extrasbutton_over.src;
		}
	}
	
	function extras_up_button(){
		if (document.images){
			document["extras"].src = extrasbutton_up.src;
		}
	}
}