jQuery(document).ready(function(){
 if( $('.push-extend-nav').length > 0 ) {
  var stretchyNavs = $('.push-extend-nav');
  
  stretchyNavs.each(function(){
   var stretchyNav = $(this),
    stretchyNavTrigger = stretchyNav.find('.push-nav-trigger');
   
   stretchyNavTrigger.on('click', function(event){
    event.preventDefault();
    stretchyNav.toggleClass('nav-is-visible');
   });
  });
  $(document).on('click', function(event){
   ( !$(event.target).is('.push-nav-trigger') && !$(event.target).is('.push-nav-trigger span') ) && stretchyNavs.removeClass('nav-is-visible');
  });
 }
});