function switchScreen(imageName) {
	if (document.images) {
		document['screen1'].src = eval("screen1_"+imageName+".src")
		document['swatch1'].src = eval("swatch1_"+imageName+".src")
		document['screen2'].src = eval("screen2_"+imageName+".src")
		document['screen3'].src = eval("screen3_"+imageName+".src")
		document['screen4'].src = eval("screen4_"+imageName+".src")
		}
	}