/*********************************************************
* Code has been slightly modified (see lines 50, 84, 91 and 111 - rmi, 2009)
* Switch (1-5) is disabled. We uncommented Code because Client may want that Feature again.
*********************************************************/


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

// 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($) {

    $.fn.innerfade = function(options) {

        /* 
        modified by rmi
        If more than 1 Image is loaded, the show up for a short moment during initial Page-Load ("blinking").
        Therefore we add a class "invisible" in xslt for the 2nd, 3rd .... Image.
        Unfortunatelly, this animation is not working when the additional class "invisible" is applied to the Image.
        For that reason, we have to remove this class first (from Image and Headline-Text).
        */
        
        $('div.image').removeClass('invisible');
        $('div.text').removeClass('invisible');

        /* end modified */


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

    $.innerfade = function(container, options) {
        var settings = {
            'animationtype': 'fade',
            'speed': 'normal',
            'type': 'sequence',
            'timeout': 2000,
            '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) {
            $(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css('z-index', String(elements.length - i)).css('position', 'absolute').hide();
            };
            if (settings.type == "sequence") {
                //$('#Switch1').addClass('activated'); /* added rmi */
                setTimeout(function() {
                    $.innerfade.next(elements, settings, 1, 0);
                }, settings.timeout);
                $(elements[0]).show();
            } else if (settings.type == "random") {
                var last = Math.floor(Math.random() * (elements.length));
                //$('#Switch' + (last + 1)).addClass('activated'); /* added rmi */
                setTimeout(function() {
                    do {
                        current = Math.floor(Math.random() * (elements.length));
                    } while (last == current);
                    $.innerfade.next(elements, settings, current, last);
                }, settings.timeout);
                $(elements[last]).show();
            } else if (settings.type == 'random_start') {
                settings.type = 'sequence';
                var current = Math.floor(Math.random() * (elements.length));
                setTimeout(function() {
                    $.innerfade.next(elements, settings, (current + 1) % elements.length, current);
                }, settings.timeout);
                $(elements[current]).show();
            } else {
                alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
            }
        }
    };

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

        /* modified rmi */
        /*
        for (var i = 1; i <= HeaderImagesCount; i++) {
            $('#Switch' + i).removeClass('activated');
        }
        
        $('#Switch' + (current + 1)).addClass('activated');
        */
        /* end modified */

        if (settings.animationtype == 'slide') {
            $(elements[last]).slideUp(settings.speed);
            $(elements[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            $(elements[last]).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
                removeFilter($(this)[0]);
            });
        } else
            alert('Innerfade-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('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
        setTimeout((function() {
            $.innerfade.next(elements, settings, current, last);
        }), settings.timeout);
    };

})(jQuery);

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