[jQuery] ajax() and get() not working, only load(). Why?

Hi,
I'm not sure what i'm doing wrong. However, with this it works
$("#About").click(function() {
            $("#content").load(
"getthis.txt",
function(){
$
("#content").animate({opacity:"1"},2000);})
             return false;
         });
But with this it doesn't:
$("#About").click(function() {
            $.ajax({
            url: "getthis.txt",
            succes: function(ddd){
                        $("#content").append(ddd);
                        $("#content").animate({opacity:"1"},2000);
                    }
            })
        });
Anybody has a clue why? It tried with $.get as well. What is it that
i'm doing wrong?