/* =========================================================

// jquery.innerfade.js

// Datum: 2007-01-29
// Firma: Medienfreunde Hofmann & Baldes GbR
// Autor: Torsten Baldes
// Mail: t.baldes@medienfreunde.com
// Web: http://medienfreunde.com

// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/

// ========================================================= */

// ========================================================= */

// 2011-02-27
// extended by Stephen Stovold @ WhiteCobalt to allow user to
// jump to a specific slide
// http://www.whitecobalt.com/

// ========================================================= */



(function ($) {


    var oElements;
    var oSettings;
    var oCurrent = 0;
    var bStopped = false;


    $.fn.innerfade = function (options) {

        this.each(function () {

            var settings = {
                animationtype: 'fade',
                speed: 'normal',
                timeout: 2000,
                type: 'sequence',
                containerheight: 'auto',
                runningclass: 'innerfade'
            };

            if (options)
                $.extend(settings, options);

            var elements = $(this).children();

            if (elements.length > 1) {

                $(this).css('position', 'relative');

                $(this).css('height', settings.containerheight);
                $(this).addClass(settings.runningclass);

                for (var i = 0; i < elements.length; i++) {
                    $(elements[i]).css('z-index', String(elements.length - i)).css('position', 'absolute');
                    $(elements[i]).hide();
                };

                oElements = elements;
                oSettings = settings;

                if (settings.type == 'sequence') {
                    setTimeout(function () {
                        $.innerfade.next(elements, settings, 1, 0, false);
                    }, settings.timeout);
                    $(elements[0]).show();
                } else if (settings.type == 'random') {
                    setTimeout(function () {
                        do { current = Math.floor(Math.random() * (elements.length)); } while (current == 0)
                        $.innerfade.next(elements, settings, current, 0, false);
                    }, settings.timeout);
                    $(elements[0]).show();
                } else {
                    alert('type must either be \'sequence\' or \'random\'');
                }

            }

        });
    };

    $.innerfade = function () { }
    $.innerfade.next = function (elements, settings, current, last, stop) {

        if (bStopped == false) {

            oCurrent = current;

            if (settings.animationtype == 'slide') {
                $(elements[last]).slideUp(settings.speed, $(elements[current]).slideDown(settings.speed));
            } else if (settings.animationtype == 'fade') {
                $(elements[last]).fadeOut(settings.speed);
                $(elements[current]).fadeIn(settings.speed);
            } else {
                alert('animationtype must either be \'slide\' or \'fade\'');
            };

            if (settings.type == 'sequence') {
                if ((current + 1) < elements.length) {
                    current = current + 1;
                    last = current - 1;
                } else {
                    current = 0;
                    last = elements.length - 1;
                };
            } else if (settings.type == 'random') {
                last = current;
                while (current == last) {
                    current = Math.floor(Math.random() * (elements.length));
                };
            } else {
                alert('type must either be \'sequence\' or \'random\'');
            };

            if (stop == false) {
                setTimeout((function () { $.innerfade.next(elements, settings, current, last, false); }), settings.timeout);
            }
            else {
                bStopped = true;
            }
        }
    };

    $.innerfade.StopOnSlide = function (slide) {
        bStopped = false;
        $.innerfade.next(oElements, oSettings, slide, oCurrent, true);
    };

})(jQuery);