I'm not a frog expert (you could join Thai Herpetography group on facebook and post it there; quite a few very knowledgable people on there!)
And for the snake I can only confirm that it is a Bronzeback (Dendrelaphis sp.)
Not sure about the species occuring down south. Also for that, Thai Herpetography will bring you the answer. Though they might possibly need a more detailed shot of the head, but maybe not ;)
It's a Golden Tree Snake, Chrysopelea ornata; one of the three flying (read: gliding) snake species of Thailand. They also love to eat geckos including big Tockay geckos. They don't always win the battle with the Tockays.
Despite inflating itself, it seems like a loosing battle for the frog. They are mildly venomous, rear-fanged, but not sure if this has much effect in the killing of the prey. As seen in one of your shots, they often seem to strangle their prey.
They are diurnal and have good vision for locating prey or potential danger.