// JavaScript Document
function toggleLayer(whichLayer)
{
	HideAllLayers();
	if (document.getElementById)
	{
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		style2.display = style2.display? "":"block";
	}
	else if (document.all)
	{
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	else if (document.layers)
	{
		// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	return;
}

function HideAllLayers()
{
	var divs = document.getElementsByTagName('div');
	for(i = 0; i < divs.length; i++)
	{
		if (document.getElementById) // DOM3 = IE5, NS6
			divs[i].style.display = "none";// show/hide
		else
			if (document.layers) // Netscape 4
				document.layers[divs[i]].display = "none";
			else // IE 4
				document.all.divs[i].visibility = "hidden";
	}
	return;
}