Custom message for Calendar component

I created a custom validator for the Calendar component, which can be useful when the customer manually enters the date (without selecting from calander) with wrong format.

Custom message from the validator of the Calendar component is never displayed, but instead the message "conversion error occured" displayed when error occurs.

How can I make my custom validator to work on Calendar component?

Thank you.

[434 byte] By [MISS_DUKE] at [2007-11-26 10:56:29]