JQuery :: Animation Not Working When In Delay

I've got a very simple animation happening that when I try to wrap in a delay method that I found here, the last process does not work (animation opacity 1). Any ideas, pointers?
$.fn.delay = function(time, callback){
// Empty function:
jQuery.fx.step.delay = function(){};
// Return meaningless animation, (will be added to queue)
return this.animate({delay:1}, time, callback);
}$('#map').delay(500, function(){
$('#mapper').attr('style', 'background: url(' + this.src + ');');
$(this).stop().animate({opacity: 0}, 0);
$(this).attr('src', '/public/images/team/map0.jpg');
$(this).stop().animate({opacity: 1}, 600);
});