/**
* jquery.simpleshow. A really simple slideshow that does exactly that.
* 
* Copyright (c) 2009 Liam Gooding
* http://goodingsmedia.com/labs/simpleshow/
*
* Dual licensed under MIT and GPL 3 licenses
* http://www.opensource.org/licenses/mit-license.php
* http://www.opensource.org/licenses/gpl-3.0.html
*
* This copyright notice must remain intact.
*
* Launch  : April 2009
* Version : 0.2.0 - April 18th 2009
*/
/*
Modified by PFR to specific AdClip HP requirements
*/
(function($)
{
/* Main jQuery plugin definition */
    $.fn.simpleshow = function(options)
    {
        // Extend our default options with those provided
        var opts = $.extend({}, $.fn.simpleshow.defaults, options);
        // our container element
        var $cont = this;
        // our main timer
        var timer = null;
        // set the container element to be relatively positioned
        $cont.css({ position: 'relative' });
        // Presets the opacity of all children and set them to be absolutely positioned
        $cont.children().each(function()
        {
            $(this).fadeOut(0);
            $(this).css({ position: 'absolute', top: 0, left: 0 });
        });
        // only show the first active one
        var $first = $cont.children('.active');

        if ($first.length == 0) {
            $first = $cont.children(':first');
            $first.addClass('active');
        }
        // Set the first pagination to have active class
        if (opts.pagination != null) {
            $(opts.pagination).children(':first').addClass('active');
        }
/* Public API */
        $.extend(this, {
            start: function(){},
            goTo: function(num)
            {
                _switchSlide($cont, opts, null, num);
            }
        });
        return this;
    };
/* Changes the currently visible slide. Private */
    function _switchSlide($cont, opts, direction, goTo)
    {
        // default direction is next
        var direction = (direction == null) ? "next" : direction;
        // get the active slide
        var $active = $cont.children('.active');
        // the next slide that we're going to fade in
        var $next = null;
        // are we trying to go to a specific slide number?
        if (goTo != null) {
            $next = $cont.children().eq(goTo);
        } else {
            // work out which one we're switching to, the next or the pevious object
            if (direction == 'next') {
                $next = $active.next().length ? $active.next() : $cont.children(':first');
            } else if (direction == 'prev') {
                $next = $active.prev().length ? $active.prev() : $cont.children(':last');
            }
        }
        // fade out the active slide to 0 opacity	
        $active.fadeOut(opts.fadeSpeed, function()
        {
            $active.removeClass('active');
        });
        // now begin to fade in our next slide
        $next.fadeIn(opts.fadeSpeed, function()
        {
            $next.addClass('active');
        });
    }
/* the defaults */
    $.fn.simpleshow.defaults = {
        speed: 5000,
        childType: 'img',
        fadeSpeed: 1000,
        pagination: null
    }
})(jQuery);