A basic parallax helper for Scrollorama

jquery.parallaxhelper.js

/**
 * Parallax helper using Scrollorama
 */
var parallax = function () {
  var parallax = this,
      $scrollorama,
      cachedWindowHeight = window.innerHeight();

  this.init = function () {
    // load scrollorama
    parallax.load();

    // Bind parallax.reinit() to window.onresize
    $window.on('throttledresize.parallax', refreshParallaxOnResize);

    function refreshParallaxOnResize () {
      // We only want to refresh scrollorama if the window's height changes,
      // not the width.
      if (cachedWindowHeight !== $window.innerHeight()) {
        parallax.refresh();

        // Update the cached window height with the new height
        cachedWindowHeight = $window.innerHeight();
      }
    }

  };

  // Create the scrollorama object
  this.create = function () {
    var blocks = selector || '.scrollblock';
    $scrollorama = new $.scrollorama({
      blocks: blocks
    });
  };

  // Load scrollorama with animation queue
  this.load = function () {
    parallax.create();
    parallax.animations();
  };

  // Re-initialize scrollorama
  this.refresh = function () {
    $scrollorama.destroy();
    parallax.load();
  };

  // Remove scrollorama completely
  this.remove = function () {
    $scrollorama.destroy();
    $window.off('throttledresize.parallax');
  };

  this.animations = function () {

    // Define animations here

  };
};