How to get dropdown menu to open/close on click rather than hover?

Question

I am very new to javascript and ajax/jquery and have been working on trying to get a script to open and close the drop menu on click rather that hover.

The menu in quest

Answer 1

 $(function() {
     $("#lang-selector li:first").click(function(){
         $('ul:first',this).toggle();
     })
 });

Using toggle will require you to click to open then reclick to close