(SOS34) Birthday in Registration Screen 1.0.4

This hook will allow new users to fill the birth date on register form. What's New in Version 1.0.4 ([url="http://community.invisionpower.com/index.php?app=downloads&module=display&section=changelog&file=4444"]See full changelog[/url]) [list]
[*]Script optimization to remember values selected by the user when any of birthdate fields aren't filled
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