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

// 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) {
                             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") {
                                                                                                                                                                                                                                                                                                                    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 ) );
                                                                                                                                                                                                                                                                                                                                                                                                                        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) {
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    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');
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    }
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    }