// JavaScript Document

function changeRollover(imgId){
	var imgToChange = document.getElementById(imgId);
	imgToChange.src = imgToChange.src.replace(".gif","-a.gif");
	imgToChange.src = imgToChange.src.replace(".jpg","-a.jpg");
}

function changeBack(imgId){
	var imgToChange = document.getElementById(imgId);
	imgToChange.src = imgToChange.src.replace("-a.gif",".gif");
	imgToChange.src = imgToChange.src.replace("-a.jpg",".jpg");
}

function changeRolloverActive(imgId){
	var imgToChange = document.getElementById(imgId);
	imgToChange.src = imgToChange.src.replace("-o.gif","-a.gif");
	imgToChange.src = imgToChange.src.replace("-o.jpg","-a.jpg");
}

function changeBackActive(imgId){
	var imgToChange = document.getElementById(imgId);
	imgToChange.src = imgToChange.src.replace("-a.gif","-o.gif");
	imgToChange.src = imgToChange.src.replace("-a.jpg","-o.jpg");
}