if (document.images) {
	bio_on = new Image
	bio_off = new Image
	paint_on = new Image
	paint_off = new Image
	sculpt_on = new Image
	sculpt_off = new Image
	guest_on = new Image
	guest_off = new Image
	contact_on = new Image
	contact_off = new Image
	ceramic_on = new Image
	ceramic_off = new Image

	bio_on.src = "images/bio_on.gif"
	bio_off.src = "images/bio_off.gif"
	paint_on.src = "images/paint_on.gif"
	paint_off.src = "images/paint_off.gif"
	sculpt_on.src = "images/sculpt_on.gif"
	sculpt_off.src = "images/sculpt_off.gif"
	guest_on.src = "images/guest_on.gif"
	guest_off.src = "images/guest_off.gif"
	contact_on.src = "images/contact_on.gif"
	contact_off.src = "images/contact_off.gif"
	ceramic_on.src = "images/ceramic_on.gif"
	ceramic_off.src = "images/ceramic_off.gif"
}

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