function hiliteon(button) {
	if (document.images) {
		hilitebutton = eval(button + "on.src")
		document [button].src = hilitebutton
		hilitepic = eval(button + "pic.src")
		document ['picture'].src = hilitepic
		}
	}
	
function hiliteoff(button) {
	if (document.images) {
		originalImage = eval(button + "off.src")
		document [button].src = originalImage
		document ['picture'].src = "graphics/dome/nav/blank.gif"
		}
	}
	
if(document.images) {
		
	oneon=new Image()
	oneon.src="graphics/dome/nav/1von.gif";
	oneoff=new Image()
	oneoff.src="graphics/dome/nav/1voff.gif";
	onepic=new Image()
	onepic.src="graphics/dome/1vdome.gif";
	
	twoon=new Image()
	twoon.src="graphics/dome/nav/2von.gif";
	twooff=new Image()
	twooff.src="graphics/dome/nav/2voff.gif";
	twopic=new Image()
	twopic.src="graphics/dome/2vdome.gif";

	threeon=new Image()
	threeon.src="graphics/dome/nav/3von.gif";
	threeoff=new Image()
	threeoff.src="graphics/dome/nav/3voff.gif";
	threepic=new Image()
	threepic.src="graphics/dome/3vdome.gif";

	fouron=new Image()
	fouron.src="graphics/dome/nav/4von.gif";
	fouroff=new Image()
	fouroff.src="graphics/dome/nav/4voff.gif";
	fourpic=new Image()
	fourpic.src="graphics/dome/4vdome.gif";

	fiveon=new Image()
	fiveon.src="graphics/dome/nav/5von.gif";
	fiveoff=new Image()
	fiveoff.src="graphics/dome/nav/5voff.gif";
	fivepic=new Image()
	fivepic.src="graphics/dome/5vdome.gif";
	
	sixon=new Image()
	sixon.src="graphics/dome/nav/6von.gif";
	sixoff=new Image()
	sixoff.src="graphics/dome/nav/6voff.gif";
	sixpic=new Image()
	sixpic.src="graphics/dome/6vdome.gif";


	
	}