; (function($) {

    var ver = 'Lite-1.0';

    $.fn.cycle = function(options) {
        return this.each(function() {
            options = options || {};

            if (this.cycleTimeout) clearTimeout(this.cycleTimeout);
            this.cycleTimeout = 0;
            this.cyclePause = 0;

            var $cont = $(this);

            var $slides = options.slideExpr ? $(options.slideExpr, this) : $cont.children();
            var els = $slides.get();
            if (els.length < 2) {
                if (window.console && window.console.log)
                    window.console.log('terminating; too few slides: ' + els.length);
                return; // don't bother
            }

            // support metadata plugin (v1.0 and v2.0)
            var opts = $.extend({}, $.fn.cycle.defaults, options || {}, $.metadata ? $cont.metadata() : $.meta ? $cont.data() : {});

            opts.before = opts.before ? [opts.before] : [];
            opts.after = opts.after ? [opts.after] : [];
            opts.after.unshift(function() { opts.busy = 0; });

            // allow shorthand overrides of width, height and timeout
            var cls = this.className;
            opts.width = parseInt((cls.match(/w:(\d+)/) || [])[1]) || opts.width;
            opts.height = 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 (opts.width)
                $cont.width(opts.width);
            if (opts.height && opts.height != 'auto')
                $cont.height(opts.height);

            if (opts.startingSlide)
                opts.startingSlide = parseInt(opts.startingSlide);

            // if random, mix up the slide array
            if (opts.random) {
                opts.randomMap = [];
                for (var i = 0; i < els.length; i++)
                    opts.randomMap.push(i);
                opts.randomMap.sort(function(a, b) { return Math.random() - 0.5; });
                opts.randomIndex = 0;
                opts.startingSlide = opts.randomMap[0];
            }
            else if (opts.startingSlide >= els.length)
                opts.startingSlide = 0; // catch bogus input
            opts.currSlide = opts.startingSlide = opts.startingSlide || 0;
            var first = opts.startingSlide;



            var first = 0;
            $slides.css({ position: 'absolute', top: 0, left: 0 }).hide().each(function(i) {
                $(this).css('z-index', els.length - i)
            });

            $(els[first]).css('opacity', 1).show(); // opacity bit needed to handle reinit case
            if ($.browser.msie) els[first].style.removeAttribute('filter');

            if (opts.fit && opts.width)
                $slides.width(opts.width);
            if (opts.fit && opts.height && opts.height != 'auto')
                $slides.height(opts.height);
            if (opts.pause)
                $cont.hover(function() { this.cyclePause = 1; }, function() { this.cyclePause = 0; });

            $.fn.cycle.transitions.fade($cont, $slides, opts);

            $slides.each(function() {
                var $el = $(this);
                this.cycleH = (opts.fit && opts.height) ? opts.height : $el.height();
                this.cycleW = (opts.fit && opts.width) ? opts.width : $el.width();
            });

            $slides.not(':eq(' + first + ')').css({ opacity: 0 });
            if (opts.cssFirst)
                $($slides[first]).css(opts.cssFirst);

            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;
            }
            opts.speedIn = opts.speed;
            opts.speedOut = opts.speed;

            opts.slideCount = els.length;
            opts.currSlide = first;
            opts.nextSlide = 1;

            // fire artificial events
            var e0 = $slides[first];
            if (opts.before.length)
                opts.before[0].apply(e0, [e0, e0, opts, true]);
            if (opts.after.length > 1)
                opts.after[1].apply(e0, [e0, e0, opts, true]);

            if (opts.click && !opts.next)
                opts.next = opts.click;
            if (opts.next)
                $(opts.next).bind('click', function() { return advance(els, opts, opts.rev ? -1 : 1) });
            if (opts.prev)
                $(opts.prev).bind('click', function() { return advance(els, opts, opts.rev ? 1 : -1) });



            if (opts.pager)
                buildPager(els, opts);

            $cont.css('visibility', 'visible');
            if (opts.timeout)
                this.cycleTimeout = setTimeout(function() {
                    go(els, opts, 0, !opts.rev)
                }, opts.timeout + (opts.delay || 0));
        });
    };

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

        if (manual || !p.cyclePause) {
            if (opts.before.length)
                $.each(opts.before, function(i, o) { o.apply(next, [curr, next, opts, fwd]); });
            var after = function() {
                if ($.browser.msie)
                    this.style.removeAttribute('filter');
                $.each(opts.after, function(i, o) { o.apply(next, [curr, next, opts, fwd]); });
            };

            if (opts.nextSlide != opts.currSlide) {
                opts.busy = 1;
                $.fn.cycle.custom(curr, next, opts, after);
            }
            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.timeout)
            p.cycleTimeout = setTimeout(function() { go(els, opts, 0, !opts.rev) }, opts.timeout);

        if (opts.pager)
            $.fn.cycle.updateActivePagerLink(opts.pager, opts.currSlide);

    };
    //Pager
    function buildPager(els, opts) {
        var $p = $(opts.pager);
        $.each(els, function(i, o) {
            $.fn.cycle.createPagerAnchor(i, o, $p, els, opts);
        });


        $.fn.cycle.updateActivePagerLink(opts.pager, opts.startingSlide);


    };

    $.fn.cycle.createPagerAnchor = function(i, el, $p, els, opts) {
        var a = ($.isFunction(opts.pagerAnchorBuilder))
		? opts.pagerAnchorBuilder(i, el)
		: '<a href="#" class="slide">' + (i + 1) + '</a>';
        if (!a)
            return;
        var $a = $(a);
        // don't reparent if anchor is in the dom
        if ($a.parents('body').length == 0)
            $a.appendTo($p);

        $a.bind(opts.pagerEvent, function() {
            opts.nextSlide = i;

            var p = els[0].parentNode, timeout = p.cycleTimeout;
            if (timeout) {
                clearTimeout(timeout);
                p.cycleTimeout = 0;
            }
            if ($.isFunction(opts.pagerClick))
                opts.pagerClick(opts.nextSlide, els[opts.nextSlide]);

            go(els, opts, 1, opts.currSlide < i); // trigger the trans
            return false;
        });
        if (opts.pauseOnPagerHover)
            $a.hover(function() { els[0].parentNode.cyclePause++; }, function() { els[0].parentNode.cyclePause--; });
    };

    // helper fn to calculate the number of slides between the current and the next
    $.fn.cycle.hopsFromLast = function(opts, fwd) {
        var hops, l = opts.lastSlide, c = opts.currSlide;
        if (fwd)
            hops = c > l ? c - l : opts.slideCount - l;
        else
            hops = c < l ? l - c : l + opts.slideCount - c;
        return hops;
    };
    // invoked after transition
    $.fn.cycle.updateActivePagerLink = function(pager, currSlide) {

   // $(pager).find('a').removeClass('activeSlide').filter('a:eq(' + currSlide + ')').addClass('activeSlide');
    $(pager).find('a').removeClass('activeSlide').filter('a:eq(' + currSlide + ')').addClass('activeSlide');
    };



    // 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;
        }
        go(els, opts, 1, val >= 0);
        return false;
    };

    $.fn.cycle.custom = function(curr, next, opts, cb) {
        var $l = $(curr), $n = $(next);
        $n.css({ opacity: 0 });
        var fn = function() { $n.animate({ opacity: 1 }, opts.speedIn, opts.easeIn, cb) };
        $l.animate({ opacity: 0 }, opts.speedOut, opts.easeOut, function() {
            $l.css({ display: 'none' });
            if (!opts.sync) fn();
        });
        if (opts.sync) fn();
    };

    $.fn.cycle.transitions = {
        fade: function($cont, $slides, opts) {
            $slides.not(':eq(0)').css('opacity', 0);
            opts.before.push(function() { $(this).show() });
        }
    };

    $.fn.cycle.ver = function() { return ver; };


    $.fn.cycle.defaults = {
        timeout: 3000,
        speed: 1000,
        next: null,
        prev: null,
        before: null,
        after: null,
        height: 'auto',
        sync: 1,
        fit: 0,
        pause: 0,
        delay: 0,
        slideExpr: null,
        pager: null,
        pagerClick: null,
        pagerEvent: 'click',
        pagerAnchorBuilder: null,
        pauseOnPagerHover: 0,
        fastOnEvent: 0,
        startingSlide: 0,
        prevNextClick: null,
        continuous: 0,
        fastOnEvent: 0
    };

})(jQuery);