// JavaScript Document
function swapImage(imgName, sFilename, mouseEvent) {
	thisImgSrc = document.images[imgName].src
	if (thisImgSrc.indexOf(".gif")>0) {
		imgType = ".gif";
		}
	else {
		imgType = ".jpg";
		}
	document.images[imgName].src = "images/" + sFilename + mouseEvent + imgType;
}