verMapa = function(a, e){
	var l = $('layMapa');
	var b = $('blocker');
	
	b.style.zIndex = (a)? 3 : 1;
	b.style.height = document.body.scrollHeight;
	l.style.display = b.style.display = (a)? 'block' : 'none';
	StopEvent(e);
}