homeup = new Image(100,20)
homeup.src = "nav1a.jpg"
homedown = new Image(100,20)
homedown.src = "nav1b.jpg"

servicesup = new Image(100,20)
servicesup.src = "nav2a.jpg"
servicesdown = new Image(100,20)
servicesdown.src = "nav2b.jpg"

portup = new Image(100,20)
portup.src = "nav3a.jpg"
portdown = new Image(100,20)
portdown.src = "nav3b.jpg"

contactup = new Image(100,20)
contactup.src = "nav5a.jpg"
contactdown = new Image(100,20)
contactdown.src = "nav5b.jpg"

pubup = new Image(100,20)
pubup.src = "nav6a.jpg"
pubdown = new Image(100,20)
pubdown.src = "nav6b.jpg"