One of the possible new feature that would be great on redmine is to be able to apply restrictions to the date field.

For instance :
restrict the startdate and/or the enddate of the calendar witch can be an exact value such as "05-05-12" or relative value "-1w" for 1 week less than today

It would be great to use it globaly in order to forbid to insert a ticket with a date in the past or having a due date witch is not lesser than X days ....

at the custom field part it would be also a great feature to have this posibility

Feature List :

• Add the possibility to restrict the start and/or ending of the calendar shown when setting a date in the date field
• The values set for those restrictions can be fixed (YY-MM-DD) or relative (+1w, -1y, +500d, ...)

The popup calendar of the date field is very limited and use a code that will not evolve.

jqueryui's datepicker can be used for this : http://jqueryui.com/demos/datepicker/#icon-trigger

Localizations of datepicker : http://jquery-ui.googlecode.com/svn/trunk/ui/i18n/

Best regards