// JavaScript Document


$(function(){
  var div = $('div.sc_menu'),
               ul = $('ul.sc_menu'),
               ulPadding = 15;

  var divWidth = div.width();

  div.css({overflow: 'hidden'});

  var lastLi = ul.find('li:last-child');

  div.mousemove(function(e){


    var ulWidth = lastLi[0].offsetLeft + lastLi.outerWidth() + ulPadding;

    var left = (e.pageX - div.offset().left) * (ulWidth-divWidth) / divWidth;
    div.scrollLeft(left);
  });
});