Error on multiseries charts

I used the Fusioncharts webform module to create some charts for a survey and got an error for the grid component stating that the data is incomplete or wrong.

After some research I found the problem is based in the creation of the array where not all possible options are listed. I fixed the error in my installation and would like to share it but the .module file is not in the 6.x-1.0 cvs branch.

Literally I created a new array with all the options of the grid (see lines 59 - 61 in changed module) and merge them with the combined array later (line 86).

If anyone is interested in the fix he can download and install a zip of the fusioncharts_webform.module file here and install it to the contrib folder of fusion charts. If the maintainer tells me how to get the module by cvs I will (try to) create a patch for it.