function viz() {
	document.getElementById("cont").style.display = "none";
	document.getElementById("more").style.display = "inline";
	document.getElementById("less").style.display = "none";
}

function showLayer(act) {
	if (act == "show") {
		document.getElementById("cont").style.display = "block";
		document.getElementById("more").style.display = "none";
		document.getElementById("less").style.display = "inline";
	} else {
		document.getElementById("cont").style.display = "none";
		document.getElementById("more").style.display = "inline";
		document.getElementById("less").style.display = "none";
	}
}