function init() {
	var menuID = ["m1","m2","m3","m2-1","m2-2"];
	for (var i in menuID)
		document.getElementById("s-"+menuID[i]).style.display = "none";
}
function mostra(id) {
	if (document.getElementById("s-"+id).style.display == "none") {
		init();
		var cObj = document.getElementById("s-"+id);
		cObj.style.display = "block";
		var p = cObj.parentNode;
		while(p)
		{
			if(p.id)
				if(cObj.id.indexOf(p.id)>=0)
					p.style.display = "block";
			p = p.parentNode;
		}
		/*var numericId = id.replace(/[^0-9]/g,'');
		for(i=numericId;i>0;i--)
			document.getElementById("s-m"+i).style.display = "block";*/
	}
	else init()
}
window.onload = function(e) 
{
	init();
	if(document.getElementsByTagName('body')[0].id)
		mostra(document.getElementsByTagName('body')[0].id.replace(/x-/,''));
}