function submitToCart (sForm, iColour, iSize) {
	var ref = document.forms[sForm];
	ref.size.value = iSize;
	ref.colour.value = iColour;
}

function changeImage (sImage) {
	if (document.images) {
		document.images.productimage.src = sImage;
	} else {
		window.open('/'+sImage, "image", "width=280, height=280")
	}
}