I've a page that displays various drop down menus, one is process and this controls what is displayed in the second - Activities. There is also a time drop down menu. I now have to have a minimum and maximum time for the activities (maximum and minimum is different for all activities) if the users enter a time that is outside the scope an alert box should appear informing the user. Not sure how I do this, any ideas? Im using a stored procedure to populate the drop menus from the database.