Preloading page before the first page?

Hello to all, please take a look at this site: www dot gloriacampaner dot com/
There is a short animation and sound at the beginning and when clicking enter the music continues and the background photo changes. It seems like the animation is in a separate popup layer that goes off when enter is hit. I don't know.
How can this be done in xara web designer?
Thank you for your answers;)

There is a piece of jQuery code that fires up on page load for the sound so yes Xara could do this.
There have been Posts to embed mp4 as the background so again yes.

Some TGer may have the time to replicate this.

Acorn