How can i tell the gender of my aquatic dwarf frog?

Question

it says the guys are smaller and when mature get glands on the back of their arm, but mine is hard to tell. sorry the pic is so blurry.

http://s184.photobucket.com/albums/x48/o0Panic0o/?action=view&current=DSCN1209.jpg

Answer 1

it looks like a female to me