function show_darklayer () {
	
	d = document.getElementById ( "fullDarkLayer" );
	d.style.display ="block";
	
}


function remove_darklkayer () {
	
	d = document.getElementById ( "fullDarkLayer" );
	d.style.display ="none";
}
function show_message (  msg ) {
	
	
	show_darklayer ();
	d = document.getElementById ( "messageLayer" );
	d.innerHTML = msg;
	d.style.display = "block";
	d.style.zIndex = "10";
	
	
} 

function remove_message (  msg ) {
	
	d = document.getElementById ( "messageLayer" );
	d.innerHTML = " ";
	d.style.display = "none";
	remove_darklayer ();
	
}