/*
bxSlider v2.0
Plugin developed by: Steven Wanderski
http://bxslider.com
http://stevenwanderski.com

Released under the GPL license:
http://www.gnu.org/licenses/gpl.html
*/

(function ($) {
    $.fn.bxSlider = function (options) {
        var defaults = { alignment: 'horizontal', controls: true, speed: 500, pager: true, pager_short: false, pager_short_separator: ' / ', margin: 0, next_text: 'next', next_image: '', prev_text: 'prev', prev_image: '', auto: false, pause: 3500, auto_direction: 'next', auto_hover: true, auto_controls: false, ticker: false, ticker_controls: false, ticker_direction: 'next', ticker_hover: true, stop_text: 'stop', start_text: 'start', wrapper_class: 'bxslider_wrap' };
        var o = $.extend(defaults, options);
        return this.each(function () {
            var $this = $(this);
            var $kids = $this.children();
            var l = $this.children().length;
            var first = $this.children(':first').clone();
            var last = $this.children(':last').clone();
            var w = 0, h = 0, current_temp = 0, pos = 0, d = 0;
            var is_working = false, playing = true, tick_play = true;
            var current = 1;
            var ease = 'swing', side = '', t = '';
            var ani = {};
            $this.append(first); //.append($this.children(':eq(1)').clone());
            //$this.append(first).prepend(last);
            $this.wrap('<div class="bxslider_container"></div>');
            $this.parent().wrap('<div class="' + o.wrapper_class + '"></div>');
            if (o.alignment == 'horizontal') {
                $this.children().css({ 'float': 'left', 'listStyle': 'none', 'marginRight': o.margin });
                w = first.outerWidth(true);
                $this.css({ 'width': '99999px', 'position': 'relative', 'left': -w });
                //$this.parent().css({'overflow':'hidden','width':w-o.margin});
            }
            else if (o.alignment == 'vertical') {
                $kids.each(function () { if ($(this).height() > h) { h = $(this).height(); } });
                w = first.outerWidth();
                $this.children().css({ 'height': h, 'listStyle': 'none', 'marginBottom': o.margin });
                $this.css({ 'height': '99999px', 'width': w, 'top': -(h + o.margin) });
                //$this.parent().css({'overflow':'hidden','height':h})
            }
            if (o.controls && !o.ticker) {
                if (o.next_image != '' || o.prev_image != '') { $this.parent().after('<a class="link-prev" href="#"><img src="' + o.next_image + '" border=0 /></a><a class="link-next" href="#"><img src="' + o.prev_image + '" border=0 /></a>'); }
                else { $this.parent().after('<a class="link-prev" href="#">' + o.next_text + '</a><a class="link-next" href="#">' + o.prev_text + '</a>'); }
                $this.parent().siblings('.link-next').click(function () {
                    if (!is_working) { move_slide(++current); }
                    if (o.auto) { clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing = false; }
                    return false;
                });
                $this.parent().siblings('.link-prev').click(function () {
                    if (!is_working) { move_slide(--current); }
                    if (o.auto) { clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing = false; }
                    return false;
                });
            }
            if (o.pager && !o.ticker) {
                $this.parent().after('<ul class="switcher s2"></ul>');
                if (!o.pager_short) {
                    var $a; $kids.each(function (index) {
                        $a = $('<li><a href="#">' + (index + 1) + '</a></li>');
                        $a.find("a").click(function () {
                            is_working = false; tick_play = false; $this.stop(); move_slide(index + 1); current = index + 1;
                            if (o.auto) { clearInterval(t); $this.parent().siblings('.auto_controls').find('a').html(o.start_text); playing = false; }
                            else if (o.ticker) { $this.parent().siblings('.ticker_controls').find('a').html(o.start_text); playing = false; }
                            return false;
                        });
                        $(".switcher").append($a);
                    });
                } else { }
                set_active(1);
            }
            if (o.auto && !o.ticker) {
                t = setInterval(function () { if (o.auto_direction == 'next') { move_slide(++current); } else { move_slide(--current); } }, o.pause); if (o.auto_hover) {
                    $this.hover(function () { clearInterval(t); }, function () {
                        if (playing) {
                            t = setInterval(function () {
                                if (o.auto_direction == 'next') { move_slide(++current); }
                                else { move_slide(--current); }
                            }, o.pause);
                        }
                    });
                }
                if (o.auto_controls) {
                    $this.parent().after('<div class="auto_controls"><a class="auto_link" href="#">' + o.stop_text + '</a></div>'); $this.parent().siblings('.auto_controls').find('a').click(function () {
                        if (playing) { clearInterval(t); $(this).html(o.start_text); playing = false; }
                        else { t = setInterval(function () { if (o.auto_direction == 'next') { move_slide(++current); } else { move_slide(--current); } }, o.pause); $(this).html(o.stop_text); playing = true; }
                        return false;
                    });
                }
            }
            if (o.ticker) {
                var tick_play = true; tick_slide(); $this.hover(function () { $this.stop(); }, function () { if (tick_play) { tick_slide(); } }); if (o.ticker_controls) {
                    $this.parent().after('<div class="ticker_controls"><a class="ticker_link" href="#">' + o.stop_text + '</a></div>'); $this.parent().siblings('.ticker_controls').find('a').click(function () {
                        if (tick_play) { $this.stop(); $(this).html(o.start_text); tick_play = false; }
                        else {
                            is_working = false; $(this).html(o.stop_text)
                            tick_slide(); tick_play = true;
                        }
                        return false;
                    });
                }
            }

            function tick_slide() {
                if (o.ticker_direction == 'next' && o.alignment == 'horizontal') {
                    $this.animate({ left: '-=5px' }, o.speed / 5, 'linear', function () {
                        //if (parseInt($this.css('left')) <= -((l + 1) * w)) { $this.css('left', -w); }
                        if (parseInt($this.css('left')) <= -((current + 1) * w)) { $this.append($(this).children(":eq(" + current + ")").clone()); current = current + 1; }
                        tick_slide();
                    });
                } else if (o.ticker_direction == 'prev' && o.alignment == 'horizontal') {
                    $this.animate({ left: '+=5px' }, o.speed / 5, 'linear', function () {
                        if (parseInt($this.css('left')) >= -(w)) { $this.css('left', -((l + 1) * w)); }
                        tick_slide();
                    });
                } else if (o.ticker_direction == 'next' && o.alignment == 'vertical') {
                    $this.animate({ top: '-=5px' }, o.speed / 5, 'linear', function () {
                        if (parseInt($this.css('top')) <= -((l + 1) * (h + o.margin))) { $this.css('top', -(h + o.margin)); }
                        tick_slide();
                    });
                } else if (o.ticker_direction == 'prev' && o.alignment == 'vertical') {
                    $this.animate({ top: '+=4px' }, o.speed / 5, 'linear', function () {
                        if (parseInt($this.css('top')) > -(h + o.margin)) { $this.css('top', -((l + 1) * (h + o.margin - 1))); }
                        tick_slide();
                    });
                }
            }

            function move_slide(num) {
                if (o.ticker) { ease = 'linear'; }
                if (!is_working) {
                    if (o.alignment == 'horizontal') { d = w; side = 'left'; }
                    else if (o.alignment == 'vertical') { d = h + o.margin; side = 'top'; }
                    pos = num * d; ani[side] = -pos; is_working = true;
                    $this.animate(ani, o.speed, ease, function () {
                        is_working = false; if (current > l) { $this.css(side, -d); current = 1; }
                        else if (current < 1) { $this.css(side, -(d * l)); current = l; }
                        set_active(current);
                    });
                }
            }
            function set_active(num) {
                if (o.pager && !o.pager_short) { $this.parent().siblings('.switcher').find('li').removeClass('active').eq(num - 1).addClass('active'); }
                else if (o.pager_short) { $this.parent().siblings('.switcher').html(num + o.pager_short_separator + $kids.length); }
            }
        });
    };
})(jQuery);