sn1off = new Image(215, 21);
sn1off.src = "images/sidenav_press_releases_off.gif";
sn2off = new Image(215, 21);
sn2off.src = "images/sidenav_press_news_off.gif";
sn3off = new Image(215, 21);
sn3off.src = "images/sidenav_press_factsheet_off.gif";
sn4off = new Image(215, 21);
sn4off.src = "images/sidenav_press_images_off.gif";

sn1on = new Image(215, 21);
sn1on.src = "images/sidenav_press_releases_on.gif";
sn2on = new Image(215, 21);
sn2on.src = "images/sidenav_press_news_on.gif";
sn3on = new Image(215, 21);
sn3on.src = "images/sidenav_press_factsheet_on.gif";
sn4on = new Image(215, 21);
sn4on.src = "images/sidenav_press_images_on.gif";