$.fn.delay = function(time, callback){
    // Empty function:
    jQuery.fx.step.delay = function(){};
    // Return meaningless animation, (will be added to queue)
    return this.animate({delay:1}, time, callback);
}

$(document).ready(function()
{
	$("#pu25jaar").delay(3000, function(){
		$(this).fadeOut("slow");
	});
});