// JavaScript Document
/**
 * Accordion Effect for Script.aculo.us
 * Created by Lucas van Dijk
 * http://www.lucasvd.nl
 *
 * Copyright 2007 by Lucas van Dijk
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 */

Effect.ScrollVertical = Class.create();

Object.extend(Object.extend(Effect.ScrollVertical.prototype, Effect.Base.prototype), 
{
    initialize: function(element) 
    {
        if(typeof element == "string")
        {        
            this.element = $(element);
            if(!this.element) 
            {
                throw(Effect._elementDoesNotExistError);
            }
        }

        var options = Object.extend({
            from: this.element.scrollTop || 0,
            to:   this.element.offsetHeight
        }, arguments[1] || {});

        this.start(options);
    },

    update: function(position) 
    {
        this.element.scrollTop = position;
    }
});

Effect.ScrollHorizontal = Class.create();

Object.extend(Object.extend(Effect.ScrollHorizontal.prototype, Effect.Base.prototype), 
{
    initialize: function(element) 
    {
        if(typeof element == "string")
        {        
            this.element = $(element);
            if(!this.element) 
            {
                throw(Effect._elementDoesNotExistError);
            }
        }

        var options = Object.extend({
            from: this.element.scrollLeft || 0,
            to:   this.element.offsetWidth
        }, arguments[1] || {});

        this.start(options);
    },

    update: function(position) 
    {
        this.element.scrollLeft = position;
    }
});