function showsub(idsub) {
		hidesubs();
		
		document.getElementById(idsub).style.display ='block';
	}
	
	function hidesubs() {
	document.getElementById('num99').style.display='none';
	document.getElementById('num100').style.display='none';
	}
 function Mappa() {
   var w = 778;
   var h = 413;
   var l = Math.floor((screen.width-w)/2);
   var t = Math.floor((screen.height-h)/2);
	window.open("/mappa.htm","mappa","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
 }