drupal_module__splash/scripts/splash.js

(function ($) {
  Drupal.behaviors.splash = {
    attach: function(context, settings) {
      var source = settings.splash.source;
      var destination = settings.splash.destination;
      var timeout = 0 + settings.splash.timeout;
      var body = settings.splash.body;
      var jBody = $('<div />').html(body);

      var sourceChildren = $(source).children();

      sourceChildren.detach();
      jBody.appendTo($(source));

      if (timeout) {
        setTimeout(function() {
          Drupal.behaviors.splash.timeoutCallback(settings, sourceChildren);
        }, timeout);
      }
    },
    timeoutCallback: function(settings, sourceChildren) {
      var source = settings.splash.source;
      var destination = settings.splash.destination;
      var timeout = 0 + settings.splash.timeout;

      var jSource = $(source);
      var jSplash = jSource.children();

      jSplash.detach();
      sourceChildren.appendTo(jSource);

      if (timeout) {
        jSplash.appendTo($(destination));
      }
    }
  };

})(jQuery);