function header_animation() {

        var $active = jQuery('.art-Header IMG.active');

        if ( $active.length == 0 ) $active = jQuery('.art-Header IMG:last');

        var $next =  $active.next().length ? $active.next()
            : jQuery('.art-Header IMG:first');

        $active.addClass('last-active');

        $next.css({opacity: 0.0})
            .addClass('active')
            .animate({opacity: 1.0}, 7000, function() {
                $active.removeClass('active last-active');
            });
}

jQuery(document).ready(function(){

    setInterval( "header_animation()", 9000 );

    jQuery("#slogan_js").animate({left: 0}, 1000);
   
});