var d = document;
var p = '../images/';
if (d.images) {
	var next   = new Image(117,44);  next.src   = p+'next.gif';
	var nextr  = new Image(117,44);  nextr.src  = p+'next_roll.gif';
	var back   = new Image(117,44);  back.src   = p+'back.gif';
	var backr  = new Image(117,44);  backr.src  = p+'back_roll.gif';
}
function over2(name) { if (d.images) { d[name].src = eval(name+'r.src'); } }
function off2(name) { if (d.images) { d[name].src = eval(name+'.src'); } }