function mouseover($group)
{
$caption_id = "caption_" + $group;
$button_id = "button_" + $group;
document.getElementById($caption_id).src ="/images/caption_rollover_" + $group + ".png";
document.getElementById($button_id).src ="/images/button_rollover.png";
}
function mouseout($group)
{
$caption_id = "caption_" + $group;
$button_id = "button_" + $group;
document.getElementById($caption_id).src ="/images/caption_" + $group + ".png";
document.getElementById($button_id).src ="/images/button.png";
}