Terminal Animation snippet

/**
 * Terminal Animation snippet
 * taken from: 
 * http://lotusrb.org/
 * http://lotusrb.org/javascripts/application.js
**/

// Typing terminal animation
$(window).load(function(){
  var version = $('meta[name=lotusrb-version]').attr('content');
  var data    = [
    {
    action: 'type',
    strings: ['gem install lotusrb^400'],
    output: '<span class="gray">Fetching: lotusrb-'+ version +'.gem (100%)<br>Succesfully installed lotusrb-'+ version +'</span><br>&nbsp;',
    postDelay: 1000
  },
  {
    action: 'type',
    strings: ['lotus new bookshelf^400'],
    output: '<span class="gray">21 files created successfully</span><br>&nbsp;',
    postDelay: 1000
  },
  {
    action: 'type',
    strings: ['cd bookshelf && bundle^400'],
    output: '<span class="gray">Bundle complete! 6 Gemfile dependencies, 25 gems now installed.</span><br>&nbsp;',
    postDelay: 1000
  },
  {
    action: 'type',
    strings: ['bundle exec lotus server^400'],
    output: $('.run-output').html()
  },
  {
    action: 'type',
    strings: [
      'Start building!',
      ''
    ],
    postDelay: 2000
  }
  ];
  runScripts(data, 0);
});
function runScripts(data, pos) {
  var prompt = $('.prompt'), script = data[pos];
  if (script.clear === true) {
    $('.history').html('');
  }
  switch (script.action) {
    case 'type':
      prompt.removeData();
    $('.typed-cursor').text('');
    prompt.typed({
      strings: script.strings,
      typeSpeed: 30,
      callback: function () {
        var history = $('.history').html();
        history = history ? [history] : [];
        history.push('$ ' + prompt.text());
        if (script.output) {
          history.push(script.output);
          prompt.html('');
          $('.history').html(history.join('<br>'));
        }
        $('section.terminal').scrollTop($('section.terminal').height());
        pos++;
        if (pos < data.length) {
          setTimeout(function () {
            runScripts(data, pos);
          }, script.postDelay || 1000);
        }
      }
    });
    break;
    case 'view':
      break;
  }
}