function slideSwitch() {
   	var $active = $('div#banner div.active');

    if ( $active.length == 0 ) $active = $('div#banner div:last');
	
    var $next =  $active.next().length ? $active.next()
    : $('div#banner div:first');

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

    $next.css({opacity: 0.0})
		.addClass('active')
		.animate({opacity: 1.0}, 1500, function()
		{
        	$active.removeClass('active last-active');
    	});
    	setTimeout(slideSwitch, 6000);
}
slideSwitch();