var subnav1 = new Image(); subnav1.src = 'images/nav-about-over.gif';var subnav2 = new Image(); subnav2.src = 'images/nav-titles-over.gif';var subnav3 = new Image(); subnav3.src = 'images/nav-guidelines-over.gif';var subnav4 = new Image(); subnav4.src = 'images/nav-contact-over.gif';var subnav5 = new Image(); subnav5.src = 'images/nav-news-over.gif';function rollImg(img, toggle){	var imagePath = 'media/nav-'+img;	imagePath += (toggle) ? '-over.gif' : '.gif';	document.images[img].src = imagePath;}