var preloaded = new Array();
function preload_images() {
    for (var i = 0; i < arguments.length; i++){
        preloaded[i] = document.createElement('img');
        preloaded[i].setAttribute('src',arguments[i]);
    };
};
preload_images(
    'menu/leftmenu-002-reading-room-rollover.gif',
    'menu/leftmenu-003-reading-room-mothers-rollover.gif',
    'menu/leftmenu-004-reading-room-fathers-rollover.gif',
    'menu/leftmenu-005-reading-room-sons-rollover.gif',
    'menu/leftmenu-006-reading-room-daughters-rollover.gif',
	'menu/leftmenu-008-testimonials-rollover.gif',
	'menu/leftmenu-010-in-the-news-rollover.gif',
	'menu/leftmenu-012-order-books-rollover.gif',
	'menu/leftmenu-014-get-in-touch-rollover.gif'
);