I have a javascript age verifier which is set to say,' You're under 18 so can't buy liquor' type of message when they insert their birthdate and will not go to the next page if in fact that is the case and if over 18, it initiates a link to any page I want.

I want to insert this page just..

after the checkout button is clicked.

If over 18, then I want it to go on its normal checkout way.

Where and what code changes do I need to make to insert a page.

Thanks,

oz