html select date [PATCH]

Hello,

Attached is a patch to html_select_date which will let you assign a
start/default value for the year, month and day select boxes.

Example:
{html_select_date end_year="+3" field_order="$_CONFIG_date_order"
field_separator="$_CONFIG_date_separator" prefix="to" month_format="%m"
day_value_format="%02d" all_extra="class='textbox'"
start_year_user=$smarty.request.toYear
start_month_user=$smarty.request.toMonth
start_day_user=$smarty.request.toDay}

Hope this one will make it to the CVS.

Nicklas