onSlideClicked( event ) {

		if( this.isActive() ) {
			event.preventDefault();

			let element = event.target;

			while( element && !element.nodeName.match( /section/gi ) ) {
				element = element.parentNode;
			}

			if( element && !element.classList.contains( 'disabled' ) ) {

				this.deactivate();

				if( element.nodeName.match( /section/gi ) ) {
					let h = parseInt( element.getAttribute( 'data-index-h' ), 10 ),
						v = parseInt( element.getAttribute( 'data-index-v' ), 10 );

					this.Reveal.slide( h, v );
				}

			}
		}

	}
Invoked when a slide is and we're in the overview.

@param {object} event