Photoshop help

Does anyone know how to create an animated image in photoshop?
I have 2 photos of comet Holmes, one from the night of the outburst and
the other from a few nights ago.
I want to overlay the two then get them to blink to show the movement
and size increase.

I'm pretty sure its on the net but I reckon one of you lot may have doe it before.

Cheers.

Hi Frank,

What you are asking for is an animated GIF and which is not doable via Photoshop. For this purpose, you need software which constructs animated GIFs ... Google with "animated GIF construction" should be all you need.

You can morph the two with this free piece of software: Sqirlz Morph

And if you get stuck, send them over to me and I'll use Flash.

Cheers, thanks lads.
I can make it an animated gif alright.
I just thought it or something like it was possible in PS.

And if you get stuck, send them over to me and I'll use Flash.

The program can output in flash or avi, which is nifty.