function changeImage(NewImage, OldImage_1, OldImage_2, OldImage_3) {
	showObject(NewImage);
	hideObject(OldImage_1);
	hideObject(OldImage_2);
	hideObject(OldImage_3);
}

function showObject(ElementID) {
	document.getElementById(ElementID).style.display = "block";
	return false;
}
function hideObject(ElementID) {
	document.getElementById(ElementID).style.display = "none";
	return false;
}