function show(id) {
	var d = document.getElementById(id);
	var alreadyOpen = false;
	for (var i = 1; i<=10; i++) {
		if (document.getElementById('smenu'+i)) {
			if(document.getElementById('smenu'+i).style.display == 'block' && 'smenu' + i == id){
				alreadyOpen = true;
			}
			document.getElementById('smenu'+i).style.display='none';
		}
	}
	if (d && alreadyOpen == false) {
		d.style.display='block';
		createCookie('menu', id);
	}
	else{
		d.style.display='none';
		eraseCookie('menu');
	}
}

function showMenu() {
	if(readCookie('menu') != null && document.getElementById(readCookie('menu')) != null){
		document.getElementById(readCookie('menu')).style.display='block';
	}
}