function daumenKino() {
    var $alt = $('#head_img img.obersteebene');
    var $neu = $alt.next().length ? $alt.next() : $('#head_img img:first');
    $alt.addClass('mittlereebene');
	$alt.removeClass('obersteebene');
    $neu.css({opacity: 0.0});
    $neu.addClass('obersteebene');
    $alt.animate({opacity: 0.0}, 2500);    
    $neu.animate({opacity: 1.0}, 3000, function() {
            $alt.removeClass('mittlereebene');
    });
}

$(document).ready(function() {
	setInterval( "daumenKino()", 3000 );

$("#overlayer_home img").click(function(){
    	$("#content_right_txt").show();
	  $(this).parents("#overlayer_home").animate({ opacity: "hide" }, "slow");
	});
  
  	
});