gistfile1.js

$controls.find('a').each(function(index){
        var $this = $(this)
        $this.data('active',false)
        $this.bind('click',function(e){
          e.preventDefault()
          if (!$this.data('active')) {
            $this.data('active',true)
            switch (index) {
              case 0:
                // up         
                if ($controlsListItems.data('current') < $controlsListItems.length-1) {
                  $controlsListItems.data('current',($controlsListItems.data('current') + 1))
                  $quotes.filter(':visible').fadeOut(function(){
                    $($quotes.eq($controlsListItems.data('current'))).fadeIn()
                  })
                  $firstListItem.animate({
                    marginTop: '-='+liHeight
                  },function(){
                    $this.data('active',false)
                  }) 
                }
              break
              case 1:   
                // down 
                if (0 < $controlsListItems.data('current')) {
                  $controlsListItems.data('current',($controlsListItems.data('current') - 1))
                  $quotes.filter(':visible').fadeOut(function(){
                    $($quotes.get($controlsListItems.data('current'))).fadeIn()
                  })
                  $firstListItem.animate({
                    marginTop: '+='+liHeight
                  },function(){
                    $this.data('active',false)
                  })
                }
              break
            }
          }
        })