Snowy scene in javascript for Christmas

[cypto]

Looking through a few old Christmas photographs, decided to create a subtle snowy scene with some simple javascript.

Just something festive for this time of year and a good test of skills in making something slightly more interesting that forum validation in JS.

Hope you guy enjoy it.
Maybe come up with your own variants by modifying the script.

 

[cypto]

Thanks for the tips Tripnologist, adjusted the files so the image covers the screen. Thought about using media queries to swap the image for different resolutions but it seems to work great as is.