using cookies to remember toggle state?

using cookies to remember toggle state?

hi, so i've been trying to figure out how to apply cookies to the code below; all i want it to do is remember whether or not the div has been toggled (keep it open, keep it closed) between refreshes/pages. any help would be much appreciated!!

 
CODE
<Script>

$(document).ready(function () {    
 $menuLeft = $('.pushmenu-left');
 $nav_list = $('#nav_list');
 
 $nav_list.click(function() {
  $(this).toggleClass('active');
  $('.pushmenu-push').toggleClass('pushmenu-push-toright');
  $menuLeft.toggleClass('pushmenu-open');

 });
});</script>