Help! What is this?

[meluvstgr]

I know it's a gecko, but what kind is it? And what do I feed it and cage it in? It's only like 2 inches long. And it's tail came off, so now it's only 1 inch long. It's head it too small for the small crickets I have!

It's green but it changes colors. It turned brown. And then it turned green again with brown little stripes (not long ones, short stripes).

Oh, and he has the suction cup toes, cuz he keeps sticking to the wall.