Default login value if nothing set

Hi there,

First of all I just want to greet all devs because roundcube is really nice.

I would like to set the "@domain.com" string in the login field if nothing is set and set the focus just before the string.

I first editied the get_input_value function of file program/include/main.inc ( around line 1130). But this way is bad because javascripts changes the focus just after the login field is filled.

I think this feature should be done in the javascript part ( around line 274 of program/js/app.js, in the 'login' case ) to be able to set the focus just before the string.

Am I right ? Should I submit this feature on trac.roundcube.net ?

Thanks