$(document).ready(function(){
	jQuery.preloadimages = function() {
		for(var i = 0; i<arguments.length; i++) {
			jQuery("<img>").attr("src", arguments[i]);
		}
	}
	
	$.preloadimages("images/book-love-over.gif", "images/home-nav-about-over.gif", "images/home-nav-books-over.gif", "images/home-news-over.gif",
	"images/home-contact-over.gif", "images/home-blog-over.gif", "images/home-book-1-over.gif", "images/home-book-2-over.gif",
	"images/home-book-3-over.gif", "images/home-book-4-over.gif", "images/home-book-5-over.gif", "images/home-book-6-over.gif");


    $(".hoverswap").hover(
        function () {
            $(this).attr("src", $(this).attr("src").replace(/.gif/, "-over.gif"));
        },
        function () {
            $(this).attr("src", $(this).attr("src").replace(/-over.gif/, ".gif"));
        }
    );


});