[jQuery] puzzle of "this"

[[EMAIL PROTECTED]]

hi everyone
i am a newbee for jquery and trying to play with it, i was puzzled by
the use of this somehow, for examle
$('.delete').click(function(){
       $.post("test2.php",{id:txt},function(){
                this.something};});
here if i want to refer this to the $('.delete') element, what shall i
write?
in debugger i found this refers to the function body.