Mystery Salamander Help

[Kittysong]

We live in Wyoming and are right next to a river - this salamander was found out in the cold and appeared dead, but when scooped up into a dustpan it moved.

This is a video of it crawling around in a cardboard box a few hours ago:
http://dl.dropbox.com/u/16623407/sal...r/HNI_0069.AVI

This is a picture of it laying on a styrofoam plate with water on it (from a water bottle to try and avoid chlorine):
http://dl.dropbox.com/u/16623407/sal...1229011735.jpg

It's blackish or olive green with four legs and four toes toes on the front feet but five on the back, yellow or greenish stripes on its sides, and red toes. It does not appear to have gills.

Currently, the salamander has just been in the same spot for maybe an hour, and didn't move when it was picked up (with latex gloves) to put it on the styrofoam plate.

Is it okay? Is it just playing dead? What kind of salamander is it, and how can we take care of it?

Help!