img1=new Image
img2=new Image
img3=new Image
img4=new Image
img5=new Image
img6=new Image
img7=new Image
img8=new Image
img9=new Image
img10=new Image

img1.src="images/nav-home.gif"
img2.src="images/nav-homeHover.gif"

img3.src="images/nav-aboutUs.gif"
img4.src="images/nav-aboutUsHover.gif"

img5.src="images/nav-treatments.gif"
img6.src="images/nav-treatmentsHover.gif"

img7.src="images/nav-news.gif"
img8.src="images/nav-newsHover.gif"

img9.src="images/nav-contactUs.gif"
img10.src="images/nav-contactUsHover.gif"