/*

* jQuery Cycle Plugin for light-weight slideshows

* Examples and documentation at: http://malsup.com/jquery/cycle/

* Copyright (c) 2007 M. Alsup

* Dual licensed under the MIT and GPL licenses:

* http://www.opensource.org/licenses/mit-license.php

* http://www.gnu.org/licenses/gpl.html

*

* @author:   M. Alsup

* @version:  1.6 (8/14/2007)

* @requires: jQuery v1.1.3.1 or later

*

* Based on the work of:

*  1) Matt Oakes (http://portfolio.gizone.co.uk/applications/slideshow/)

*  2) Torsten Baldes (http://medienfreunde.com/lab/innerfade/)

*  3) Benjamin Sterling (http://www.benjaminsterling.com/experiments/jqShuffle/)

*/
(function ($) {

    $.fn.cycle = function (options) {
        return this.each(function () {
            if (options && options.constructor == String) {
                if (options == 'stop') {
                    if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
                    this.cycleTimeout = 0;
                    return;
                }
                options = { fx: options };
            }

            var $cont = $(this), $slides = $cont.children(), els = $slides.get();
            donum('1/' + els.length);
            if (els.length < 2) return; // don't bother

            var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.meta ? $cont.data() : {});
            if (opts.autostop)
                opts.countdown = els.length;

            opts.before = opts.before ? [opts.before] : [];
            opts.after = opts.after ? [opts.after] : [];

            // allow shorthand overrides of width, height and timeout
            var cls = this.className;
            var w = parseInt((cls.match(/w:(\d+)/) || [])[1]) || opts.width;
            var h = parseInt((cls.match(/h:(\d+)/) || [])[1]) || opts.height;
            opts.timeout = parseInt((cls.match(/t:(\d+)/) || [])[1]) || opts.timeout;

            if ($cont.css('position') == 'static')
                $cont.css('position', 'relative');
            if (w)
                $cont.width(w);
            if (h && h != 'auto')
                $cont.height(h);

            $slides.each(function (i) { $(this).css('z-index', els.length - i); }).css('position', 'absolute').hide();
            $(els[0]).show();
            if (opts.fit && w)
                $slides.width(w);
            if (opts.fit && h && h != 'auto')
                $slides.height(h);
            if (opts.pause)
                $cont.hover(function () { opts.paused = 1; }, function () { opts.paused = 0; });

            // run transition init fn
            var init = $.fn.cycle.transitions[opts.fx];
            if ($.isFunction(init))
                init($cont, $slides, opts);
            if (opts.cssBefore)
                $slides.not(':eq(0)').css(opts.cssBefore);

            opts.cssBefore = opts.cssBefore || {};
            opts.animIn = opts.animIn || {};
            opts.animOut = opts.animOut || {};

            if (opts.timeout) {
                // ensure that timeout and speed settings are sane
                if (opts.speed.constructor == String)
                    opts.speed = { slow: 600, fast: 200}[opts.speed] || 400;
                if (!opts.sync)
                    opts.speed = opts.speed / 2;
                while ((opts.timeout - opts.speed) < 250)
                    opts.timeout += opts.speed;
            }
            if (opts.easing)
                opts.easeIn = opts.easeOut = opts.easing;
            if (!opts.speedIn)
                opts.speedIn = opts.speed;
            if (!opts.speedOut)
                opts.speedOut = opts.speed;

            //alert(els.length);
            //alert(opts.currSlide[0]);

            opts.nextSlide = opts.random ? (Math.floor(Math.random() * (els.length - 1))) + 1 : 1;
            opts.currSlide = 0;

            if (opts.click && !opts.next)
                opts.next = opts.click;
            if (opts.next)
                $(opts.next).bind('click', function () { return advance(els, opts, 1) });
            if (opts.prev)
                $(opts.prev).bind('click', function () { return advance(els, opts, -1) });
            if (opts.pager)
                buildPager(els, opts);
            if (opts.timeout)
                this.cycleTimeout = setTimeout(function () { go(els, opts, 1) }, opts.timeout + (opts.delay || 0));
        });
    };

    function go(els, opts, manual) {
        var p = els[0].parentNode, curr = els[opts.currSlide], next = els[opts.nextSlide];
        if (p.cycleTimeout === 0 && !manual)
            return;

        if (opts.before.length)
            $.each(opts.before, function (i, o) { o.apply(next, [curr, next, opts]); });
        var after = (opts.after.length == 0) ? null : function () {
            $.each(opts.after, function (i, o) { o.apply(next, [curr, next, opts]); });
        };

        if (manual || !opts.paused) {
            if (opts.autostop && (--opts.countdown == 0)) return;
            if (opts.nextSlide != opts.currSlide) {
                if (opts.fxFn)
                    opts.fxFn(curr, next, opts, after);
                else if ($.isFunction($.fn.cycle[opts.fx]))
                    $.fn.cycle[opts.fx](curr, next, opts, after);
                else
                    $.fn.cycle.custom(curr, next, opts, after);
            }
            if (opts.random) {
                opts.currSlide = opts.nextSlide;
                while (opts.nextSlide == opts.currSlide)
                    opts.nextSlide = Math.floor(Math.random() * els.length);
            }
            else { // sequence
                var roll = (opts.nextSlide + 1) == els.length;
                opts.nextSlide = roll ? 0 : opts.nextSlide + 1;
                opts.currSlide = roll ? els.length - 1 : opts.nextSlide - 1;
            }
            if (opts.pager)
                $(opts.pager).find('a').removeClass('activeSlide').filter('a:eq(' + opts.currSlide + ')').addClass('activeSlide');
        }
        if (opts.timeout)
            p.cycleTimeout = setTimeout(function () { go(els, opts, 0) }, opts.timeout);
    };

    // advance slide forward or back
    function advance(els, opts, val) {

        var p = els[0].parentNode, timeout = p.cycleTimeout;
        if (timeout) {
            clearTimeout(timeout);
            p.cycleTimeout = 0;
        }
        opts.nextSlide = opts.currSlide + val;

        if (opts.nextSlide < 0)
            opts.nextSlide = els.length - 1;
        else if (opts.nextSlide >= els.length)
            opts.nextSlide = 0;

        donum(opts.nextSlide + 1 + '/' + els.length);

        go(els, opts, 1);
        return false;
    };

    function donum(val) {
        $('#num').html(val);
    };

    function buildPager(els, opts) {
        var $p = $(opts.pager);
        $.each(els, function (i, o) {
            var $a = $('<a href="#">' + (i + 1) + '</a>').appendTo($p).bind('click', function () {
                opts.nextSlide = i;
                go(els, opts, 1);
                return false;
            });
            if (i == 0)
                $a.addClass('activeSlide');
        });
    };

    $.fn.cycle.custom = function (curr, next, opts, cb) {
        var $l = $(curr);
        var fn = function () { $(next).css(opts.cssBefore).animate(opts.animIn, opts.speedIn, opts.easeIn, cb) };
        $l.animate(opts.animOut, opts.speedOut, opts.easeOut, function () {
            if (opts.cssAfter) $l.css(opts.cssAfter);
            if (!opts.sync) fn();
        });
        if (opts.sync) fn();
    };

    $.fn.cycle.version = '1.6';

    $.fn.cycle.transitions = {
        fade: function ($cont, $slides, opts) {
            opts.before.push(function () { $(this).show() }),
        opts.animIn = { opacity: 1 };
            opts.animOut = { opacity: 0 };
            opts.cssAfter = { display: 'none' }
        }

    };

    // override these globally if you like (they are all optional)
    $.fn.cycle.defaults = {
        fx: 'fade', // one of: fade, shuffle, zoom, slideX, slideY, scrollUp/Down/Left/Right
        timeout: 4000,  // milliseconds between slide transitions (0 to disable auto advance)
        speed: 1000,  // speed of the transition (any valid fx speed value)
        speedIn: null,  // speed of the 'in' transition
        speedOut: null,  // speed of the 'out' transition
        click: null,  // @deprecated; please use the 'next' option
        next: null,  // id of element to use as click trigger for next slide
        prev: null,  // id of element to use as click trigger for previous slide
        pager: null,  // id of element to use as pager container
        before: null,  // transition callback (scope set to element to be shown)
        after: null,  // transition callback (scope set to element that was shown)
        easing: null,  // easing method for both in and out transitions
        easeIn: null,  // easing for "in" transition
        easeOut: null,  // easing for "out" transition
        shuffle: null,  // coords for shuffle animation, ex: { top:15, left: 200 }
        animIn: null,  // properties that define how the slide animates in
        animOut: null,  // properties that define how the slide animates out
        cssBefore: null,  // properties that define the initial state of the slide before transitioning in
        cssAfter: null,  // properties that defined the state of the slide after transitioning out
        fxFn: null,  // function used to control the transition
        height: 'auto', // container height
        sync: 1,     // true if in/out transitions should occur simultaneously
        random: 0,     // true for random, false for sequence (not applicable to shuffle fx)
        fit: 0,     // force slides to fit container
        pause: 0,     // true to enable "pause on hover"
        autostop: 0,     // true to end slideshow after X transitions (where X == slide count)
        delay: 0      // additional delay (in ms) for first transition (hint: can be negative)
    };

})(jQuery);

/*

* jQuery Cycle Plugin Transition Definitions

* This script is a plugin for the jQuery Cycle Plugin

* Examples and documentation at: http://malsup.com/jquery/cycle/

* Copyright (c) 2007 M. Alsup

* Dual licensed under the MIT and GPL licenses:

* http://www.opensource.org/licenses/mit-license.php

* http://www.gnu.org/licenses/gpl.html

*

* @author:   M. Alsup

* @version:  1.5 (8/13/2007)

*/

//
// These functions define one-time slide initialization properties for the named
// transitions. To save file size feel free to remove any of these that you 
// don't need.
//

// scrollLeft/Right/Up/Down
jQuery.fn.cycle.transitions.scrollLeft = function($cont, $slides, opts) {
    var w = $cont.css('overflow', 'hidden').width();
    opts.cssBefore = { left: w };
    opts.animIn = { left: 0 };
    opts.animOut = { left: -w };
};
jQuery.fn.cycle.transitions.scrollRight = function($cont, $slides, opts) {
    var w = $cont.css('overflow', 'hidden').width();
    opts.cssBefore = { left: -w };
    opts.animIn = { left: 0 };
    opts.animOut = { left: w };
};
jQuery.fn.cycle.transitions.scrollUp = function($cont, $slides, opts) {
    var h = $cont.css('overflow', 'hidden').height();
    opts.cssBefore = { top: h };
    opts.animIn = { top: 0 };
    opts.animOut = { top: -h };
};
jQuery.fn.cycle.transitions.scrollDown = function($cont, $slides, opts) {
    var h = $cont.css('overflow', 'hidden').height();
    opts.cssBefore = { top: -h };
    opts.animIn = { top: 0 };
    opts.animOut = { top: h };
};

// slideX/slideY
jQuery.fn.cycle.transitions.slideX = function($cont, $slides, opts) {
    opts.animIn = { width: 'show' };
    opts.animOut = { width: 'hide' };
};
jQuery.fn.cycle.transitions.slideY = function($cont, $slides, opts) {
    opts.animIn = { height: 'show' };
    opts.animOut = { height: 'hide' };
};

// shuffle
jQuery.fn.cycle.transitions.shuffle = function($cont, $slides, opts) {
    var w = $cont.css('overflow', 'visible').width();
    $slides.show();
    opts.speed = opts.speed / 2; // shuffle has 2 transitions        
    opts.random = 0;
    opts.shuffle = opts.shuffle || { left: -w, top: 15 };
    opts.els = [];
    for (var i = 0; i < $slides.length; i++)
        opts.els.push($slides[i]);

    // shuffle transition function (hat tip to Benjamin Sterling for this bit of sweetness!)
    opts.fxFn = function(curr, next, opts, cb) {
        var $el = jQuery(curr);
        $el.animate(opts.shuffle, opts.speedIn, opts.easeIn, function() {
            opts.els.push(opts.els.shift());
            for (var i = 0, len = opts.els.length; i < len; i++)
                jQuery(opts.els[i]).css('z-index', len - i);
            $el.animate({ left: 0, top: 0 }, opts.speedOut, opts.easeOut, cb);
        });
    };
};

// turnLeft/Right/Down/Up
jQuery.fn.cycle.transitions.turnLeft = function($cont, $slides, opts) {
    var w = jQuery($slides[0]).width();
    opts.cssBefore = { left: w, width: 0, zIndex: 1 };
    opts.animIn = { left: 0, width: w };
    opts.animOut = { width: 0 };
    opts.cssAfter = { zIndex: 0 };
};
jQuery.fn.cycle.transitions.turnRight = function($cont, $slides, opts) {
    var w = jQuery($slides[0]).width();
    opts.cssBefore = { left: 0, width: 0, zIndex: 1 };
    opts.animIn = { width: w };
    opts.animOut = { left: w, width: 0 };
    opts.cssAfter = { zIndex: 0 };
};
jQuery.fn.cycle.transitions.turnDown = function($cont, $slides, opts) {
    var h = jQuery($slides[0]).height();
    opts.cssBefore = { top: 0, height: 0, zIndex: 1 };
    opts.animIn = { height: h };
    opts.animOut = { top: h, height: 0 };
    opts.cssAfter = { zIndex: 0 };
};
jQuery.fn.cycle.transitions.turnUp = function($cont, $slides, opts) {
    var h = jQuery($slides[0]).height();
    opts.cssBefore = { top: h, height: 0, zIndex: 1 };
    opts.animIn = { top: 0, height: h };
    opts.animOut = { height: 0 };
    opts.cssAfter = { zIndex: 0 };
};

// zoom
jQuery.fn.cycle.transitions.zoom = function($cont, $slides, opts) {
    var $el = jQuery($slides[0]);
    var w = $el.width(), h = $el.height();
    opts.cssBefore = { top: h / 2, left: w / 2, width: 0, height: 0, zIndex: 1 };
    opts.animIn = { top: 0, left: 0, width: w, height: h };
    opts.animOut = { top: h / 2, left: w / 2, width: 0, height: 0 };
    opts.cssAfter = { zIndex: 0 };
};