function findLayerName(name) {
// Returns a handle to the named layer. Right now only works for IE
	layername = eval('document.all.' + name + '.style');
	return(layername);
	
}

function showLayer(name) {
	thisLayer = findLayerName(name);
	thisLayer.visibility = "visible";
}

function hideLayer(name) {
	thisLayer = findLayerName(name);
	thisLayer.visibility = "hidden";
}