(function($) {
  var cache = [];
  // Single argument is an array of image filenames, path is inserted manually
  $.preLoadImagesFromArray = function() {
  	var imgNameArray = arguments[0];
  	var args_len = imgNameArray.length;
    for (var i = args_len; i--;) {
      // var cacheImage = document.createElement('img');
      var cacheImage = new Image();
      cacheImage.src = '/images/'+imgNameArray[i];
      cache.push(cacheImage);
    }
  }
})(jQuery)