// JavaScript Document
function rollOutBtn (btnOver) {
	var over = document.getElementById(btnOver);
	over.src = "img/left_nav/"+btnOver+"_off.gif";
	
}

function rollOverBtn (btnOver) {
	var over = document.getElementById(btnOver);
	over.src = "img/left_nav/"+btnOver+"_on.gif";
	
}