focusin() and trigger('focusin') fire handlers but dont actually focus the element?

focusin() and trigger('focusin') fire handlers but dont actually focus the element?

i'm not sure if this is by design or not, but while both of the following lines fire the bound handlers, they fail to actually focus the element itself.

$("#a").trigger('focusin');
$("#a").focusin();

i'm sure it's a pretty easy fix, but for the time being i have to resort to using focus() to trigger the focusin handlers + element focusing.

thanks,
Leon