// PRELOAD IMAGES
var home_ov = new Image();
home_ov.src = "images/nav/home_ov.gif";

var registration_ov = new Image();
registration_ov.src = "images/nav/registration_ov.gif";

var sponsors_ov = new Image();
sponsors_ov.src = "images/nav/sponsors_ov.gif";

var volunteers_ov = new Image();
volunteers_ov.src = "images/nav/volunteers_ov.gif";

var contact_ov = new Image();
contact_ov.src = "images/nav/contact_ov.gif";