var galleryScroll;
var position = 0;

window.addEvent('domready', function() { 
	// initialise tooltips
	$$('img.tips').each(function(element,index) {   
		var content = element.get('title');
		element.store('tip:title', '');   
		element.store('tip:text', content); 
	}); 
	var tipz = new Tips('.tips',{ 
		className: 'tool-tip',
		hideDelay: 50,   
		showDelay: 50   
	});
});

function move_left(number, count) {
	if(position == 0) {
		return;
	}
	position -= 61 * number + 1;
	if(position <= 0) {
		galleryScroll.toLeft();
	}
	galleryScroll.start(position, 0);
}

function move_right(number, count) {
	if(position >= ((count-8) * 61) + 1) {
		return;
	}
	position += 61 * number + 1;
	if(position >= ((count-8) * 61) + 1) {
		galleryScroll.toRight();
	} else {
		galleryScroll.start(position, 0);
	}
}