/**
 * Write an ad with the specified width and height.  Depends on
 * gck_ads_reporting.js and dispatcher.js.
 * 
 * @param {Object} width
 * @param {Object} height
 */
function writeAd(width, height) {
  var adDimensions = width + 'x' + height;
  com.mtvi.ads.AdManager.placeAd({size: adDimensions});
}