var  scroll = {
	top: function(event) { new Effect.ScrollTo('top'); },
	footer: function(event) { new Effect.ScrollTo('footer'); },
	branding: function(event) { new Effect.ScrollTo('branding'); },
	print: function(event) { new Effect.ScrollTo('print'); },
	interactive: function(event) { new Effect.ScrollTo('interactive'); },
	motion: function(event) { new Effect.ScrollTo('motion'); },
	environmental: function(event) { new Effect.ScrollTo('environmental'); }
}

Event.observe(document, 'load', function(){
	$('go_to_top').observe('click', scroll.top);
});