function show(whichLayer)
{
	if (document.getElementById)
	{
		document.getElementById(whichLayer).style['display']='block';
	}
	else if (document.all)
	{
		document.all[whichLayer].style['display']='block';
	}
	else if (document.layers)
	{
		document.layers[whichLayer].style['display']='block';
	}
}
function hide(whichLayer)
{
	if (document.getElementById)
	{
		document.getElementById(whichLayer).style['display']='none';
	}
	else if (document.all)
	{
		document.all[whichLayer].style['display']='none';
	}
	else if (document.layers)
	{
		document.layers[whichLayer].style['display']='none';
	}
}