window.addEvent('domready', function(){

	var current_photo_left = $$('#imageblock_left div.photo_inner').shift();

	// gallery - left half
	var scroll_left_photos = new Fx.Scroll('photo_left', {
		wait: false,
		duration: 2000,
		transition: Fx.Transitions.Back.easeInOut
	});
	// scroller events - left half
	$$('#imageblock_left .nav_right').addEvent('click', function(event) {
		event = new Event(event).stop();
		var el_photo = current_photo_left.getNext();
		var mass=$$('#imageblock_left div.photo_inner');
		if (mass.length-mass.indexOf(el_photo)>2) {
		if (el_photo) {
			scroll_left_photos.toElement(el_photo);
			current_photo_left = el_photo;
		}}
	});
	$$('#imageblock_left .nav_left').addEvent('click', function(event) {
		event = new Event(event).stop();
		var el_photo = current_photo_left.getPrevious();
		if (el_photo) {
			scroll_left_photos.toElement(el_photo);
			current_photo_left = el_photo;
		}
	});
});