[jQuery] problem with keypress delay and ie

[hcvitto]

hi everybody, just joined this group:)
i'm using yahoo autocomplete and jquery (i'm not an expert, just using
jquery for some weeks now).
I've got the autocomplete which trigger a function on choosing an
option both via mouse or keyboard. The click event works fine but if i
use the return event in ie i need to keep pressed the key for a
millisecond more in order to trigger the event.
Has anyone had the same problem before(and a solution)?

the code is :
$("#ysearchinput").keydown(function(e){
                if(e.keyCode==13)
                        taglia();
});

thanks in advance
Vitto