/**
 * @author 					Dave Shepard
 * @updated_at 				May 15, 2009
 * @required libraries:		Prototype 1.6 or later
 * 
 * Scroller object for easy implementation of scrolling area.
 *
 * Implementation:
 * ===============
 * After the object is available in the DOM (recommended using the
 * document.observe('dom:loaded') command for best results), run 
 * the following command to initialize the scroller object:
 * 
 *     new Scroller('scroller_id','next_button_id','previous_button_id'[, params, options]);
 * 
 * Parameters:
 * ---------------------------------------------------------------
 * scroller_id				[string] (required) The ID to be assigned as scroller_id. 
 * 									 This is the immediate parent container of the 
 * 									 scrolled elements
 * next_button_id			[string] (optional) The ID of the "next" button
 * previous_button_id		[string] (optional) The ID of the "previous" button
 *
 */

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