/* hide and show functions used by secondary menu level  */

function hide ( name ) 
{
	NS4 = (document.layers) ? 1 : 0;
	IE4 = (document.all) ? 1 : 0;
	W3C = (document.getElementById) ? 1 : 0; 
	if (W3C) 
	{
		document.getElementById(name).style.visibility = "hidden";
	} 
	else if (NS4) 
	{
		document.layers[name].visibility = "hidden";
	} 
	else 
	{
		document.all[name].style.visibility = "hidden";
	}
}

function show ( name ) 
{
	NS4 = (document.layers) ? 1 : 0;
	IE4 = (document.all) ? 1 : 0;
	W3C = (document.getElementById) ? 1 : 0; 
	if (W3C) 
	{
		document.getElementById(name).style.visibility = "visible";
	} 
	else if (NS4) 
	{
		document.layers[name].visibility = "visible";
	} 
	else 
	{
		document.all[name].style.visibility = "visible";
	}
}