sn1off = new Image(215, 21);
sn1off.src = "images/sidenav_about_company_off.gif";
sn2off = new Image(215, 21);
sn2off.src = "images/sidenav_about_press_off.gif";
sn3off = new Image(215, 26);
sn3off.src = "images/sidenav_about_jobs_off.gif";

sn1on = new Image(215, 21);
sn1on.src = "images/sidenav_about_company_on.gif";
sn2on = new Image(215, 21);
sn2on.src = "images/sidenav_about_press_on.gif";
sn3on = new Image(215, 26);
sn3on.src = "images/sidenav_about_jobs_on.gif";