var pgLoaded = false;

var viewport_id = 'viewport';
var scroller_id = 'film_reel';
var scroll_content_id = 'film_content';

var frame_title_block = null;
var frame_title_index = 0;

var frame_title_array = [];

function setTitle(inc) {
  if (frame_title_block == null) {
    frame_title_block = document.getElementById('frame_title_block');
  }

  if (frame_title_block) {
    if ((frame_title_index + inc > -1) && (frame_title_index + inc < frame_title_array.length)) {
      frame_title_index += inc;
      frame_title_block.innerHTML = frame_title_array[frame_title_index];
    }
  }
}

function setFrameTitleArray(arr) {
  frame_title_array = arr;
}

function initScenery() {
  pgLoaded = true;
  initScrLyr();
}

_load(initScenery);