g = defaultTiming;
						if( slide.hasAttribute( 'data-timing' )) {
							var t = slide.getAttribute( 'data-timing' );
							timing = parseInt(t);
							if( isNaN(timing) ) {
								console.warn("Could not parse timing '" + t + "' of slide " + i + "; using default of " + defaultTiming);
								timing = defaultTiming;
							}
						}
						timings.push(timing);
					}
					return timings;

				}

				/**
				 * Return the number of seconds allocated for presenting
				 * all slides up to and including 