// JavaScript Document
var oldlayer='';
function toggleLayer(whichLayer,recurse)
{
if (!recurse)
{
	if (oldlayer==whichLayer)
	{
		oldlayer='';
	}
	else
	{
		if (oldlayer) { toggleLayer(oldlayer,1); }
		oldlayer=whichLayer;
	}
}
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";
}
}