hi ,
i want to validate my field email , i want to get a popup error before saving the forum not after 
and thx for help :) 

def validate_mail(self):
    if self.email:
        match = re.match('^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$', self.email)
        if match == None:
            raise ValidationError('Not a valid E-mail ID')