Splashscreen before index.php

Hello all.

I’m well aware of the index.html/index.php looping situation and have thought of a workaround that will fulfil the advertising needs of my clients. This is what I need – a full page splash screen before anything else WordPress-wise loads that has HTML5 animation with 2 links – one to click through to the advertisers site, and another to click through to the main site, which in essence is simply saying carry on loading WordPress and the main site. Via cookies, it should only appear when I specify – once per visit, per day or ever.

I see this working by manually loading everything in the top of the index.php file and waiting until one of the links is clicked. I’ve had some success loading content into the top of index.php, but it’s the waiting for a link to be clicked that is vexing me.

It cannot be a popup or show any of my site – the first thing to load in and stay must be a full page splash screen. Anyone with a solution? Or maybe an elegant way of achieving the same end result?

Thanks in advance.