function rollOver(mybutton) {
	var parentInfo = document.getElementById(mybutton).parentNode;
	parentInfo.className = mybutton + "Over";
	var buttonSide = document.getElementById('btnSide');
	buttonSide.className = mybutton + "Right";
}

function rollOut(mybutton) {
	var parentInfo = document.getElementById(mybutton).parentNode;
	parentInfo.className = mybutton;
	var buttonSide = document.getElementById('btnSide');
	buttonSide.className = "";
}