Classical(?) music ID help (kinda silly, but...)

In browsing through some Yahoo ecards, I came across this one, which has a pretty melody playing along with it, unlike the cheesy music that accompanies some of the others. Can anyone tell me if the melody is a snippet of some classical piece, or could it have been composed simply for use with the card? Thanks!

I can’t help you with the ID, but that sounds more like a modern piano piece rather than classical.

Yes, it’s a classical piece; however, while I recognize it, it’s too early in the morning for me to place it yet.

Give me a bit of time- if someone else doesn’t get it before…

It’s Chopin, the Fantasie-Impromptu middle section, popularly known as “I’m Always Chasing Rainbows.”

Here’s the whole thing: (scroll down and click on “Fantasie-Impromptu in C#, play for free”)