This is an extremely handy Jquery plugin to have if you have an age restricted site. If you have an existing PHP page blocker, why not add a creative supplement system into your site. This is a Jquery based plugin that will prompt your user to fill in birth date information in order to get access to your site. Along with being a creative alternative solution, this plugin has many parameters for customization. You can even log each user’s age and time stamp of when they filled out the form.