Effect.Scroll = Class.create();
Object.extend(Object.extend(Effect.Scroll.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'absolute'
    } , arguments[1] || {}  );
    this.start(options);
  },
  setup: function() {
    if (this.options.continuous && !this.element._ext ) {
      this.element.cleanWhitespace();
      this.element._ext=true;
      this.element.appendChild(this.element.firstChild);
    }
   
    this.originalLeft=this.element.scrollLeft;
    this.originalTop=this.element.scrollTop;
   
    if(this.options.mode == 'absolute') {
      this.options.x -= this.originalLeft;
      this.options.y -= this.originalTop;
    } else {
   
    }
  },
  update: function(position) {   
    this.element.scrollLeft = this.options.x * position + this.originalLeft;
    this.element.scrollTop  = this.options.y * position + this.originalTop;
  }
});



function moveTo(container, element) {
	Position.prepare();
	container_y = Position.cumulativeOffset($(container))[1];
	element_y = Position.cumulativeOffset($(element))[1];
	new Effect.Scroll(container, {
		x :0,
		y :(element_y - container_y)
	});
	return false;
}

function scroll_down(element) {
	
	element.scrollTop += 30;
	
	return;
	new Effect.Scroll(element, {
		x :0,
		y :element.scrollTop + 200
	});
}

function scroll_up(element) {
	
	element.scrollTop -= 30;
	
	return;
	new Effect.Scroll(element, {
		x :0,
		y :element.scrollTop - 200
	});
}

function closeIntro() {
	swfobject.removeSWF("intro");
	$('intro_container').remove();
	
	myGallery.toggleSlideshow();
}

function show_designpreview(caller,id) {
	
	$$('ul.design li').each( function (item) {
		Element.removeClassName(item,'current');
	});
	
	Element.addClassName(caller.parentNode,'current');
	hide_designpreviews();
	$(id).show();
}

function hide_designpreviews() {
	$('designpreview_animation').hide();
	$('designpreview_products').hide();
	$('designpreview_interiors').hide();
	$('designpreview_objects').hide();
	$('designpreview_furniture').hide();
	$('designpreview_graphics').hide();
}