if (document.images) {
	homeOff = new Image
	homeOn = new Image
	avOff = new Image
	avOn = new Image
	webOff = new Image
	webOn = new Image
	photosOff = new Image
	photosOn = new Image
	kitesOff = new Image
	kitesOn = new Image
	linksOff = new Image
	linksOn = new Image
	
	homeOff.src = "images/bits/home-off.gif"
	homeOn.src = "images/bits/home-on.gif"
	avOff.src = "images/bits/av-off.gif"
	avOn.src = "images/bits/av-on.gif"
	webOff.src = "images/bits/web-off.gif"
	webOn.src = "images/bits/web-on.gif"
	photosOff.src = "images/bits/photos-off.gif"
	photosOn.src = "images/bits/photos-on.gif"
	kitesOff.src = "images/bits/kites-off.gif"
	kitesOn.src = "images/bits/kites-on.gif"
	linksOff.src = "images/bits/links-off.gif"
	linksOn.src = "images/bits/links-on.gif"
	
}

function chgImg(imgField,newImg) {
	if (document.images) {
		document[imgField].src= eval(newImg + ".src")
	}
}