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

// jquery.innerfade.js

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


(function($) {

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

    $.innerfade = function(container, options) {
        var settings = {
            'animationtype':    'fade',
            'speed':            'normal',
            'type':             'sequence',
            'timeout':          2000,
            'containerheight':  'auto',
            'runningclass':     'innerfade',
            'children':         null
        };
        //console.log($(container).children());
        //alert($(container).children('li').length)
        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);
           //CP set hover
           $.innerfade.onhover($(container),elements,settings);  
           $.innerfade.init (elements,settings);
        }

    }
    
    $.innerfade.init = function(elements, settings) {

         for (var i = 0; i < elements.length; i++) {
            $(elements[i]).css('z-index', String(elements.length-i) + '00').css('position', 'absolute').hide();
        };
        
        if (settings.type == "sequence") {
             setTimeout(function() { 
                $.innerfade.next(elements, settings);
            }, settings.timeout);    
            $(elements[0]).show();
            
        } else if (settings.type == "random") {
                $.innerfade.last = Math.floor ( Math.random () * ( elements.length ) );
             setTimeout(function() {
                do { 
                    $.innerfade.current = Math.floor ( Math.random ( ) * ( elements.length ) );
                } while ($.innerfade.last == $.innerfade.current );             
                $.innerfade.next(elements, settings);
            }, settings.timeout);
            $(elements[$.innerfade.last]).show();
            
        } else if ( settings.type == 'random_start' ) {
                settings.type = 'sequence';
                var current = Math.floor ( Math.random () * ( elements.length ) );
                 setTimeout(function(){
                    $.innerfade.current =  (current + 1) %  elements.length;
                    $.innerfade.last = current;
                    $.innerfade.next(elements, settings);
                }, settings.timeout);
                $(elements[$.innerfade.current]).show();
        }    
        else {
            alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
        }
          

    };
    
    $.innerfade.timer = null;  
    $.innerfade.current = 1;
    $.innerfade.last = 0;
    
    $.innerfade.next = function(elements, settings) {
               
        var current = $.innerfade.current;
        var last = $.innerfade.last;      
          //console.log(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\'');
            
       $.innerfade.current = current;
        $.innerfade.last = last; 
                  

        $.innerfade.timer = setTimeout((function() {
                                    $.innerfade.next(elements, settings);
                            }), settings.timeout); 
                  
 
    };
    
    $.innerfade.onhover = function(container,elements,settings){
                         
        container.hover(
            function(event){  //mouse in
                clearTimeout($.innerfade.timer);  
            }
            ,
            function(event){   //mouse out

                $.innerfade.timer = setTimeout((function() {    
                    $.innerfade.next(elements,settings);
                 }), settings.timeout); 
            }   
        );  
     
    };

})(jQuery);

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