// preload images first (can run before page is fully loaded)
$.preloadImages("images/navigation/blamologo_on.png", "images/navigation/cart_on.png");
$(
	function()
	{
		// set up rollover
		$(".cartSystem").hover(
			function()
			{
				this.src = this.src.replace("_off","_on");
			},
			function()
			{
				this.src = this.src.replace("_on","_off");
			}
		);
	}
)