I have an adult site and when a user first visits I would like there to be a stylish pop up that says this is an adults only site blah blah blah you must agree before you enter. I'm not talking about a junky windows alert pop up or anything. I mean a nice stylish one that takes up 2/3 of the screen and blocks the adult content until they accept the terms and conditions. What is the best way to go about this? I'd be willing to pay for some help with this issue