// javascript image roll overs -- arcww.// for Practical Money Skills - Main Navigation.//for consumersif (document.images) {  imageAon = new Image();  imageAon.src = "/moneyskills/images/header/button-consumer-on.gif";  imageAoff = new Image();  imageAoff.src = "/moneyskills/images/header/button-consumer.gif";}//for teachersif (document.images) {  imageBon = new Image();  imageBon.src = "/moneyskills/images/header/button-teachers-on.gif";  imageBoff = new Image();  imageBoff.src = "/moneyskills/images/header/button-teachers.gif";}//for studentsif (document.images) {  imageCon = new Image();  imageCon.src = "/moneyskills/images/header/button-students-on.gif";  imageCoff = new Image();  imageCoff.src = "/moneyskills/images/header/button-students.gif";}function turnOn(imageName) {  if (document.images) {    document[imageName].src = eval(imageName + "on.src");  }}function turnOff(imageName) {  if (document.images) {    document[imageName].src = eval(imageName + "off.src");  }}