var nav_home = new Image();
var nav_home_on = new Image();
nav_home.src = '/images/colors/dark_green/nav_home.gif';
nav_home_on.src = '/images/colors/dark_green/nav_home_on.gif';

var nav_jobs = new Image();
var nav_jobs_on = new Image();
nav_jobs.src = '/images/colors/dark_green/nav_jobs.gif';
nav_jobs_on.src = '/images/colors/dark_green/nav_jobs_on.gif';

var nav_contact = new Image();
var nav_contact_on = new Image();
nav_contact.src = '/images/colors/dark_green/nav_contact.gif';
nav_contact_on.src = '/images/colors/dark_green/nav_contact_on.gif';

var nav_about = new Image();
var nav_about_on = new Image();
nav_about.src = '/images/colors/dark_green/nav_about.gif';
nav_about_on.src = '/images/colors/dark_green/nav_about_on.gif';