function getSlideData( indices, id ) {
		if ( id == undefined ) id = mode;
		if ( !indices ) indices = slideIndices;
		var data;
		for ( var i = 0; i < storage[ id ].data.length; i++ ) {
			if ( storage[ id ].data[ i ].slide.h === indices.h && storage[ id ].data[ i ].slide.v === indices.v && storage[ id ].data[ i ].slide.f === indices.f ) {
				data = storage[ id ].data[ i ];
				return data;
			}
		}
		var page = Number( Reveal.getCurrentSlide().getAttribute('data-pdf-page-number') ); 
//console.log( indices, Reveal.getCurrentSlide() );
		storage[ id ].data.push( {
			slide: indices,
			page,
			events: [],
			duration: 0
		} );
		data = storage[ id ].data[ storage[ id ].data.length - 1 ];
		return data;
	}
Returns data object for the slide with the given indices.