pooff=new Image(119,20);
pooff.src="images/nav-po_off.gif";

poon=new Image(119,20);
poon.src="images/nav-po_on.gif";

rideroff=new Image(93,20);
rideroff.src="images/nav-riders_off.gif";

rideron=new Image(93,20);
rideron.src="images/nav-riders_on.gif"; 

ackoff=new Image(135,20);
ackoff.src="images/nav-ack_off.gif";

ackon=new Image(135,20);
ackon.src="images/nav-ack_on.gif"; 

contactoff=new Image(68,20);
contactoff.src="images/nav-contact_off.gif";

contacton=new Image(68,20);
contacton.src="images/nav-contact_on.gif"; 

homeoff=new Image(54,20);
homeoff.src="images/nav-home_off.gif";

homeon=new Image(54,20);
homeon.src="images/nav-home_on.gif"; 

pictureoff=new Image(97,63);
pictureoff.src="images/photooff.gif";

pictureon=new Image(97,63);
pictureon.src="images/photoon.gif"; 

pictureover=new Image(97, 63);
pictureover.src = "images/photoover.gif";

storyoff=new Image(97,63);
storyoff.src="images/storyoff.gif";

storyon=new Image(97,63);
storyon.src="images/storyon.gif"; 

storyover=new Image(97,63);
storyover.src="images/storyover.gif";