function makeScrollable(wrapper, scrollable){
  var wrapper = $(wrapper), scrollable = $(scrollable);

  scrollable.hide();
  var loading = $('<div class="loading">Loading...</div>').appendTo(wrapper);

  var interval = setInterval(function(){
    var images = scrollable.find('img');
    var completed = 0;

    images.each(function(){
      if (this.complete) completed++;
    });

    if (completed == images.length){
      clearInterval(interval);
      setTimeout(function(){

        loading.hide();
        wrapper.css({overflow: 'hidden'});                                              

        scrollable.slideDown('slow', function(){
          enable();
        });
      }, 1000);
    }
  }, 100);

	function enable(){
	  // height of area at the top at bottom, that don't respond to mousemove
	  var inactiveMargin = 50;
	  // Cache for performance
	  var wrapperWidth = wrapper.width();
	  var wrapperHeight = wrapper.height();
	  // Using outer height to include padding too
	  var scrollableHeight = scrollable.outerHeight() + 2*inactiveMargin;
	  // Do not cache wrapperOffset, because it can change when user resizes window
	  // We could use onresize event, but it's just not worth doing that
	  // var wrapperOffset = wrapper.offset();
	  
	  //When user move mouse over menu
	  wrapper.mousemove(function(e){
	    var wrapperOffset = wrapper.offset();
	    // Scroll menu
	    var top = (e.pageY -  wrapperOffset.top) * (scrollableHeight - wrapperHeight) / wrapperHeight  - inactiveMargin;
	
	    if (top < 0){
	      top = 0;
	    }
	    wrapper.scrollTop(top);
	  });
	}
}