function button()
{
var trigger = window.event.srcElement.id;
window.event.srcElement.src = picpath + trigger + ".jpg";
}

function buttondown()
{
var trigger = window.event.srcElement.id;
window.event.srcElement.src = picpath + trigger + "-down.jpg";
}

function buttonup()
{
var trigger = window.event.srcElement.id;
window.event.srcElement.src = picpath + trigger + "-up.jpg";
}

function revealCage()
{
cage.filters.item(0).Apply();
cage.style.visibility = "visible";
cage.filters.item(0).Play();
}