about = new Image();
about.src = "/images/nav_about_on.gif";

invest = new Image();
invest.src = "/images/nav_invest_on.gif";

share = new Image();
share.src = "/images/nav_share_on.gif";

home = new Image();
home.src = "/images/nav_home_on.gif";

contact = new Image();
contact.src = "/images/nav_contact_on.gif";