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


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