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

// jquery.innerfade.js

// Datum: 2008-02-14
// Firma: Medienfreunde Hofmann & Baldes GbR
// Author: 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/
// and Ralf S. Engelschall http://trainofthoughts.org/

*
*  <ul id="news"> 
*      <li>content 1</li>
*      <li>content 2</li>
*      <li>content 3</li>
*  </ul>
*  
*  $('#news').innerfade({ 
*	  animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'), 
*	  speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'), 
*	  timeout: Time between the fades in milliseconds (Default: '2000'), 
*	  type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'), 
* 		containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
*	  runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
*	  children: optional children selector (Default: null)
*  }); 
*

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


(function ($) {

    var current;
    var last;
    var clicked = false;
    var fadeTime;

    $.fn.innerfade = function (options) {

        return this.each(function () {
            $.innerfade(this, options);
        });
    };

    $.innerfade = function (container, options) {
        var settings = {
            'animationtype': 'fade',
            'speed': 'slow',
            'type': 'sequence',
            'timeout': 5000,
            'continuous': true,
            'containerheight': 'auto',
            'runningclass': 'innerfade',
            'children': null
        };

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

        if (settings.children === null)
            var elements = $(container).children();
        else
            var elements = $(container).children(settings.children);

        if (elements.length > 1 && settings.continuous) {
            $(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css('z-index', String(elements.length - i)).css('position', 'absolute').hide();

                $(elements[i]).hover(function () {
                    settings.continuous = false;
                    clearInterval(fadeTime);
                }, function () {
                    if (!clicked) {
                        settings.continuous = true;
                    }

                    last = parseInt($("ol#controls li.current a").attr("rel"));
                    if ((last + 1) == elements.length) {
                        current = 0;
                    }
                    else {
                        current = last + 1;
                    }

                    fadeTime =
                        setInterval((function () {
                            $.innerfade.next(elements, settings, current, last);
                        }), settings.timeout);
                });
            };
            if (settings.type == "sequence") {
                current = 1;
                last = 0;
                fadeTime =
                    setInterval((function () {
                        $.innerfade.next(elements, settings);
                    }), settings.timeout);
                $(elements[last]).show();
            }
        }

        $("ol#controls li").click(function () {
            settings.continuous = false;
            clearInterval(fadeTime);
            clicked = true;

            last = parseInt($("ol#controls li.current a").attr("rel"));
            current = parseInt($(this).find("a").attr("rel"));

            move(elements, settings);
        });

        $("div.lastNewsHeader a#prevBtn").click(function () {
            clearInterval(fadeTime);
            settings.continuous = true;
            clicked = false;

            last = parseInt($("ol#controls li.current a").attr("rel"));
            if (last == 0)
                current = elements.length - 1;
            else
                current = last - 1;

            move(elements, settings, current, last);
            fadeTime =
                setInterval((function () {
                    $.innerfade.next(elements, settings);
                }), settings.timeout);
        });

        $("div.lastNewsHeader a#nextBtn").click(function () {
            clearInterval(fadeTime);
            settings.continuous = true;
            clicked = false;

            last = parseInt($("ol#controls li.current a").attr("rel"));
            if ((last + 1) == elements.length)
                current = 0;
            else
                current = last + 1;

            move(elements, settings, current, last);
            fadeTime =
                setInterval((function () {
                    $.innerfade.next(elements, settings);
                }), settings.timeout);
        });
    };

    function move(elements, settings) {
        $(elements[last]).fadeOut(settings.speed);
        $(elements[current]).fadeIn(settings.speed, function () {
            removeFilter($(this)[0]);
        });

        var x = $("ol#controls").children();
        $(x[last]).removeClass("current");
        $(x[current]).addClass("current");
    };

    $.innerfade.next = function (elements, settings) {

        if (settings.continuous) {

            move(elements, settings, current, last);

            if ((current + 1) < elements.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = elements.length - 1;
            }

        }
    };

})(jQuery);

// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
    if (element.style.removeAttribute) {
        element.style.removeAttribute('filter');
    }
}