hom = new Image();
hom.src = "images/homehover.gif";
serveb = new Image();
serveltblue = new Image();
contactb = new Image();
contactltblue = new Image();
missionb = new Image();
missionltblue = new Image();
showcaseb = new Image();
showcaseltblue = new Image();

serveb.src = "images/serviceb.gif";
serveltblue.src = "images/servicebhover.gif";
contactb.src = "images/contactusb.gif";
contactltblue.src = "images/contactusbhover.gif";
missionb.src = "images/missionb.gif";
missionltblue.src = "images/missionbhover.gif";
showcaseb.src = "images/showcaseb.gif";
showcaseltblue.src = "images/showcasebhover.gif";