function toggleLayer(whichLayer) {
	if (document.getElementById)	// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
	else if (document.all)	// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
	else if (document.layers)	// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
	style2.display == "block" ? style2.display = "none" : style2.display = "block";
}

function listserv(whichLayer) {
	if(whichLayer == 'listserv-subscribe')
		SecondLayer = 'listserv-unsubscribe';
	else
		SecondLayer = 'listserv-subscribe';
	
	if (document.getElementById)	// this is the way the standards work
	{
		var style1 = document.getElementById(whichLayer).style;
		var style2 = document.getElementById(SecondLayer).style;
	}
	else if (document.all)	// this is the way old msie versions work
	{
		var style1 = document.all[whichLayer].style;
		var style2 = document.all[SecondLayer].style;
	}
	else if (document.layers)	// this is the way nn4 works
	{
		var style1 = document.layers[whichLayer].style;
		var style2 = document.layers[SecondLayer].style;
	}
	style1.display == "block" ? style1.display = "none" : style1.display = "block";
	style2.display = "none";
			
}