-1 mean the default style I think but I didn't test for all style, maybe you should query all styleid and then use a while loop for that function.
Hello deathemperor,
Thank you very much. But does it makes sense to place my new templates in all styles? I was thinking of doing that because the most common problem that people are posting is:
"I get a blank white page. Your hack doesn't work."
And you can read this in 90% of the hack threads. If I would install my templates in all styles, I would eliminate one possible error cause.