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

    $.imagerotate = function(images, options) {
        var settings = {
			'animationtype':    'fade',
            'speed':            2000,
            'type':             'sequence',
            'timeout':          4000,
            'containerheight':  'auto',
            'runningclass':     'imagerotate'
        };
        if (options)
            $.extend(settings, options);

        if (images.length > 1) {
            if (settings.type == "sequence") {
                setTimeout(function() {
                    $.imagerotate.next(images, settings, 1, 0);
                }, settings.timeout);
                $(images[0]).show();
            } else if (settings.type == "random") {
				var last = Math.floor ( Math.random () * ( images.length ) );
                setTimeout(function() {
                    do { 
						current = Math.floor ( Math.random ( ) * ( images.length ) );
					} while (last == current );             
					$.imagerotate.next(images, settings, current, last);
                }, settings.timeout);
                $(images[last]).show();
			} else if ( settings.type == 'random_start' ) {
				settings.type = 'sequence';
				var current = Math.floor ( Math.random () * ( images.length ) );
				setTimeout(function(){
					$.imagerotate.next(images, settings, (current + 1) %  images.length, current);
				}, settings.timeout);
				$(images[current]).show();
			}else {
				alert('imagerotate-Type must either be \'sequence\', \'random\' or \'random_start\'');
			}
		}
    };

    $.imagerotate.next = function(images, settings, current, last) {
        if (settings.animationtype == 'slide') {
            $(images[last]).slideUp(settings.speed);
            $(images[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            $(images[last]).fadeOut(settings.speed);
            $(images[current]).fadeIn(settings.speed, function() {
				removeFilter($(this)[0]);
			});
        } else
            alert('imagerotate-animationtype must either be \'slide\' or \'fade\'');
        if (settings.type == "sequence") {
            if ((current + 1) < images.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = images.length - 1;
            }
        } else if (settings.type == "random") {
            last = current;
            while (current == last)
                current = Math.floor(Math.random() * images.length);
        } else
            alert('imagerotate-Type must either be \'sequence\', \'random\' or \'random_start\'');
        setTimeout((function() {
            $.imagerotate.next(images, settings, current, last);
        }), settings.timeout);
    };

})(jQuery);

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