custom web server control with client and server side validation

[JohnyCoder]

hello everybody: i am new to VB.net I have to design a custom web server control which validates itself on client side and server-side. which means that i would not use a seperate custom validator for validation, but it should be a part of the custom control itself.and this validation would be done on clientside first, and incase javascript is off in browser then validation is done on server side. The description of the custom control is as follows: its a date control which has 3 dropdowns(dds).one for month, second for days and third for days.it has two properties isDOB(boolean) and getDate which returns the date in the format mm/dd/yyyy. one method setDate which takes the string inn the format mm/dd/yyyy.This will set date according to the input string. can somebody point me to the rite direction.any help would be deeply appreciated. Thanks Cheers! AB