Add an "click outside of menu to close" jquary/javascript to a menu drop-up that has .toggle()

I would like to add the function to close the menu if i click outside the menu. And also keep the menu button working to close it too: http://ift.tt/1DNxM2R

$(document).ready(function () { $("li").click(function () { $('li > ul').not($(this).children("ul").toggle()).hide(); }); });

Also can you tell me if this is correct for mobile etc? I hope and think so, because it's using .click, right?

This is referring to this post, that I can't reply to the answer to ask there: How to change drop-down menu to drop-up menu

via Chebli Mohamed