nav = [];
nav.home = new Rollover("home","/image/navigation/nav_home.gif","/image/navigation/nav_home_over.gif");
nav.profile = new Rollover("profile","/image/navigation/nav_profile.gif","/image/navigation/nav_profile_over.gif");
nav.filmmaking = new Rollover("filmmaking","/image/navigation/nav_filmmaking.gif","/image/navigation/nav_filmmaking_over.gif");
nav.design = new Rollover("design","/image/navigation/nav_graphic-design.gif","/image/navigation/nav_graphic-design_over.gif");
nav.photography = new Rollover("photography","/image/navigation/nav_photography.gif","/image/navigation/nav_photography_over.gif");
nav.credits = new Rollover("credits","/image/navigation/nav_credits.gif","/image/navigation/nav_credits_over.gif");
nav.email = new Rollover("email","/image/navigation/nav_email.gif","/image/navigation/nav_email_over.gif");