Valdation Callback's from Model's...

[eluser]wiredesignz[/eluser]
Sorry I am not able to write code for you.

Keep working at it, you'll get there.

[eluser]The Wizard[/eluser]
Hello, you got me wrong.
I do not want it for me, i want it for the community.
We could have put it onto the wiki later on.

Im a programmer for 9 long years, and was just asking for help.
But hey,
still thanks

[eluser]wiredesignz[/eluser]
Here, I searched the forums for you.

http://ellislab.com/forums/viewthread/69797/

The search criteria is "callbacks into models", It may help you get an idea.

The wiki (see my signature) has an example also.