function show(id)
{
if (document.layers)
document.layers[id].visibility = "show"
else if (document.all)
document.all[id].style.visibility = "visible"
}


function hide(id)
{
if (document.layers)
document.layers[id].visibility = "hide"
else if (document.all)
document.all[id].style.visibility = "hidden"
}