nav1=new Image(104,30)
nav1.src="images/nav/capabilities.gif"
nav2=new Image(104,30)
nav2.src="images/nav/capabilities-over.gif"

nav3=new Image(104,31)
nav3.src="images/nav/estimates.gif"
nav4=new Image(104,31)
nav4.src="images/nav/estimates-over.gif"

nav5=new Image(104,30)
nav5.src="images/nav/uploads.gif"
nav6=new Image(104,30)
nav6.src="images/nav/uploads-over.gif"

nav7=new Image(104,30)
nav7.src="images/nav/home.gif"
nav8=new Image(104,30)
nav8.src="images/nav/home-over.gif"

nav9=new Image(104,30)
nav9.src="images/nav/directions.gif"
nav10=new Image(104,30)
nav10.src="images/nav/directions-over.gif"

function filter(imagename,objectsrc){
if (document.images)
document.images[imagename].src=eval(objectsrc+".src")
}