/* SCROLLBAR INITIALIZATION */
function init() {
	var scroller = new Bs_ScrollableDiv();
	scroller.init('gallery_container', 'gallery_content');
	
  var sliderObj = new Bs_Slider();
	sliderObj.width          = 20;
	sliderObj.height         = 313;
	sliderObj.arrowMouseOver = true;
	sliderObj.direction      = 1;
	sliderObj.imgDir         = '/images/scrollbars/';
	sliderObj.setBackgroundImage('scrollbar_trough.gif', 'repeat');
	sliderObj.setSliderIcon('scrollbar_handle.gif', 20, 155);
	sliderObj.setArrowIconLeft('gallery_top_arrow.jpg', 20, 19);
	sliderObj.setArrowIconRight('down_arrow_button.jpg', 20, 27);
	
	scroller.setSliderObject(sliderObj, 'main_scrollbars');
	scroller.setSlideSpeed(350, 'pixel'); //50 pixel per second
	scroller.setWheelSpeed(75, 'pixel'); //10 pixel per tick	
}