function toggleLayer(whichLayer)
{
// alert(whichLayer + " : " + document.getElementById(whichLayer).style.display);
if (whichLayer == "bandPage1") {
	document.getElementById("bandPage1").style.display="block";
	document.getElementById("bandPage2").style.display="none";
	
} else {
	document.getElementById("bandPage1").style.display="none";
	document.getElementById("bandPage2").style.display="block";
}
}