currentSlideTiming) {
									pacingEl.className = 'pacing on-track';
								}
								else {
									pacingEl.className = 'pacing ahead';
								}
								_displayTime( pacingHoursEl, pacingMinutesEl, pacingSecondsEl, timeLeftCurrentSlide );
							} );
						} );
					}

				}

				/**
				 * Sets up the speaker view layout and layout selector.
				 */
				function setupLayout() {

					layoutDropdown = document.querySelector( '.speaker-layout-dropdown' );
					layoutLabel = document.querySelector( '.