function toggleLayer(lname) {
	var layerName = lname+"Gallery";
	var galleryId = document.getElementById(lname+"Gallery").style.display;
	if (galleryId == "none") {
		document.getElementById(lname+"Gallery").style.display = "block";
	} else if (galleryId == "block") {
		document.getElementById(lname+"Gallery").style.display = "none";
	}
}
function openPopUp(picURL, windowHeight, windowWidth) {
	window.open( "popup_img.html?" + picURL, "", "resizable=1, height=400,width=400,scrollbars=yes"); 
}