error in deepzoom protocol

[sbarex]

There is a error in the implementation of getThumbnailURL inside deepzoom.js protocol.
The thumbLevel var is defined from the value of this.tileSize that is never setted.
I suggest to change the parseMetaData function to set this variable adding this line before the return statement:

this.tileSize = {w: ts, h: ts};

And, inside getThumbnailURL change the definition of thumbLevel with this:

var thumbLevel = Math.log(this.tileSize.w) / Math.LN2 - 1;

[Ruven]

OK thanks, I've just uploaded an update based on your suggestion. I simplified slightly as we don't need to keep separate width and height tile sizes for Deepzoom.