if (document.images) {
	
	img1on=new Image();
	img1on.src="i/nav_retro.gif";

	img1off=new Image();
	img1off.src="i/nav_retro_off.gif";
	
	img2on=new Image();
	img2on.src="i/nav_book.gif";

	img2off=new Image();
	img2off.src="i/nav_book_off.gif";
	
	img3on=new Image();
	img3on.src="i/nav_author.gif";

	img3off=new Image();
	img3off.src="i/nav_author_off.gif";
	
	img4on=new Image();
	img4on.src="i/nav_ex.gif";

	img4off=new Image();
	img4off.src="i/nav_ex_off.gif";
	
	img5on=new Image();
	img5on.src="i/nav_rev.gif";

	img5off=new Image();
	img5off.src="i/nav_rev_off.gif";
	
		img6on=new Image();
	img6on.src="i/nav_links.gif";

	img6off=new Image();
	img6off.src="i/nav_links_off.gif";
	
			img7on=new Image();
	img7on.src="i/nav_contact.gif";

	img7off=new Image();
	img7off.src="i/nav_contact_off.gif";
	
				img8on=new Image();
	img8on.src="i/nav_buy.gif";

	img8off=new Image();
	img8off.src="i/nav_buy_off.gif";

}

	function imgOn(imgName) { if (document.images) {
		document [imgName].src=eval(imgName + "on.src");
		
	}}

	function imgOff(imgName) { if (document.images) {
		document [imgName].src=eval(imgName + "off.src");
		
	}}

//-->