// JavaScript Document
$(document).ready(function(){
    $('.down-list').width($('.dropdown-menu').width()+120);
    $('.dropdown-menu').hover(
      function () {
        $('.menu-first', this).addClass('slide-down'); 
        $('.down-list', this).slideDown(450);
      }, 
      function () {
        obj = this;
        $('.down-list', this).slideUp(450, function(){ $('.menu-first', obj).removeClass('slide-down'); });
      }
    );
});