179335 Flash warning page for adult

We need a warning page and age verification field for our adult site. Page will do the following- Check for first visit. If not first visit display page as normal. If first visit, display page in background with a transparent warning page asking for date of birth. If over age 18 then requested page shows, under 18 they get redirected. Please ask any questions prior to bidding. Preference to those with design samples we like.