// JavaScript Document
function showMsg(layerName, button) {
	ml =  document.getElementById(layerName);
	newsLayer = ml.style;
	
	if(button != '') {
		btn = document.getElementById(button);
		label = btn.value;
		btnName = label.slice(4,label.length);
	}
	
	if( newsLayer.visibility == "hidden") {
		newsLayer.visibility = "visible";
		newsLayer.display = "block";
		if(button != '')
			btn.value = "Hide"+btnName;
	}
	else {
		newsLayer.visibility = "hidden";
		newsLayer.display = "none";
		if(button != '') 
			btn.value = "Show"+btnName;
	}
	return true;
}