Can you identify this algae

[dismayed]

I was thinking this was diatom, but as time has gone on it is looking a lot greener and hairier now, so I'm not sure which this is. A few parts even have a purple hue. Can someone ID it for me:

http://farm3.static.flickr.com/2169/1793012087_c51a74dadc.jpg?v=0

 

[drty811]

some sort of hair algae i would guess.......

 

[Trogdor]

hard to tell really. any better photos? that one is a tad blurry