$(document).ready(function() {
	
	
	jQuery.preloadImages = function() {
		for(var i = 0; i<arguments.length; i++) {
			jQuery("<img>").attr("src", arguments[i]);
		}
	}
	
	
	$.preloadImages("images/l-1o.jpg", "images/l-2o.jpg", "images/l-3o.jpg", "images/l-4o.jpg", "images/l-5o.jpg", "images/l-6o.jpg", "images/l-7o.jpg", "images/l-8o.jpg", "images/l-9o.jpg", "images/l-10o.jpg", "images/l-11o.jpg", "images/l-12o.jpg");
	
	for (i=0; i<12; i++) {
		$('.navigation a:eq('+i+')').css('background','url(images/l-'+(i+1)+'.jpg)');
	}
	
	$('.navigation a:eq(0)').hover(function(){$(this).css('background','url(images/l-1o.jpg)');},function(){$(this).css('background','url(images/l-1.jpg)');});
	$('.navigation a:eq(1)').hover(function(){$(this).css('background','url(images/l-2o.jpg)');},function(){$(this).css('background','url(images/l-2.jpg)');});
	$('.navigation a:eq(2)').hover(function(){$(this).css('background','url(images/l-3o.jpg)');},function(){$(this).css('background','url(images/l-3.jpg)');});
	$('.navigation a:eq(3)').hover(function(){$(this).css('background','url(images/l-4o.jpg)');},function(){$(this).css('background','url(images/l-4.jpg)');});
	$('.navigation a:eq(4)').hover(function(){$(this).css('background','url(images/l-5o.jpg)');},function(){$(this).css('background','url(images/l-5.jpg)');});
	$('.navigation a:eq(5)').hover(function(){$(this).css('background','url(images/l-6o.jpg)');},function(){$(this).css('background','url(images/l-6.jpg)');});
	$('.navigation a:eq(6)').hover(function(){$(this).css('background','url(images/l-7o.jpg)');},function(){$(this).css('background','url(images/l-7.jpg)');});
	$('.navigation a:eq(7)').hover(function(){$(this).css('background','url(images/l-8o.jpg)');},function(){$(this).css('background','url(images/l-8.jpg)');});
	$('.navigation a:eq(8)').hover(function(){$(this).css('background','url(images/l-9o.jpg)');},function(){$(this).css('background','url(images/l-9.jpg)');});
	$('.navigation a:eq(9)').hover(function(){$(this).css('background','url(images/l-10o.jpg)');},function(){$(this).css('background','url(images/l-10.jpg)');});
	$('.navigation a:eq(10)').hover(function(){$(this).css('background','url(images/l-11o.jpg)');},function(){$(this).css('background','url(images/l-11.jpg)');});
	$('.navigation a:eq(11)').hover(function(){$(this).css('background','url(images/l-12o.jpg)');},function(){$(this).css('background','url(images/l-12.jpg)');});	
	
	

	
});