Why is automatic focus on first input disabled?

[leenm]

Why is line 210 in jquery.getsimple.js commented out? (GetSimple 3.0)

Code:

//$("input[type='text']:first", document.forms[0]).focus();

This is nice functionality, especially on the login page.

EDIT: to be clear, I'd like to have this back if possible. I know I can un-comment it myself, but there's probably a good reason why this is disabled.