function scrollPhotos(distance) {
	
	var list = document.getElementById('photoList');
	var elements = list.getElementsByTagName('li');
	
	var totalWidth = 0;
	
	for (i=0; i<elements.length; i++) {
		totalWidth += elements[i].offsetWidth + 6;
	}
		
	new Slideshow('thumbnailsSlider','thumbnailsViewport', distance, 0, 0.2, totalWidth, -1);
}