if (document.images )

{
var n1On = new Image ()
	n1On.src = "images/links_roll_04.jpg"
	var n1Off = new Image ()
	n1Off.src = "images/links_04.jpg"

var n2On = new Image ()
	n2On.src = "images/links_roll_05.jpg"
	var n2Off = new Image ()
	n2Off.src = "images/links_05.jpg"

var n3On = new Image ()
	n3On.src = "images/links_roll_06.jpg"
	var n3Off = new Image ()
	n3Off.src = "images/links_06.jpg"

var n4On = new Image ()
	n4On.src = "images/links_roll_07.jpg"
	var n4Off = new Image ()
	n4Off.src = "images/links_07.jpg"

var n5On = new Image ()
	n5On.src = "images/links_roll_08.jpg"
	var n5Off = new Image ()
	n5Off.src = "images/links_08.jpg"

var n6On = new Image ()
	n6On.src = "images/links_roll_09.jpg"
	var n6Off = new Image ()
	n6Off.src = "images/links_09.jpg"

var n7On = new Image ()
	n7On.src = "images/links_roll_10.jpg"
	var n7Off = new Image ()
	n7Off.src = "images/links_10.jpg"

var n8On = new Image ()
	n8On.src = "images/links_roll_11.jpg"
	var n8Off = new Image ()
	n8Off.src = "images/links_11.jpg"


}
function turnOn (imgName) {
	if (document.images)
	document [imgName].src = eval (imgName + "On.src");
}

function turnOff (imgName) {
	if (document.images)
	document [imgName].src = eval (imgName + "Off.src");
}