5 posts and 2 questions. Not off to a very good start. Be patient, and you will be rewarded. No patience.........no reward!
Anyway, as far as the age verification, That's no problem. You can Google "Age verification script" and come up with thousands. Here's one that's totally free, as most of them are, anymore. This one was found at Webmasters World:
<[B]script[/B] langu[B]age[/B]="java[B]script[/B]">
var [B]age[/B]Prompt=prompt("You must be over 18 to enter.")
if ([B]age[/B]Prompt>=18)
document.location="http://www.example.co.uk/ok-p[B]age[/B].html";
else {
alert('Sorry, we can not let you in!')
document.location="http://www.example.co.uk/too-young-p[B]age[/B].html";
}
</[B]script[/B]>
Of course, you will have to change the URL's to your own.
Also, if they click "Exit", then by all means, let them exit. There's nothing more frustrating than trying to leave a site while the site is trying to keep you there.
Furthermore, if you make them stay on your site........they're even MORE likely to lie about their age (as if they won't anyway). I know..........it's all the legality stuff making you do this in the first place.
Teach them to shop and they will shop today;
Teach them to Zen and they will OWN a shop tomorrow!