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

// 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/

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


$(document).ready( function(){
    $('.fade').innerfade({
        speed: 2500,
        timeout: 5000,
        type: 'sequence',
        containerheight: '195px'
    });
} );


(function($) {

    $.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();
            };

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


$.innerfade = function() {}
    $.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);
        } 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\'');
        };
        
        setTimeout((function(){$.innerfade.next(elements, settings, current, last);}), settings.timeout);
    };
})(jQuery);