captcha guide and manual

[eluser]GabrieleMartino[/eluser]
Does anyone know where i can get a good explanation of the helper?

I really didn't understand the documentation in the first part.

For example what is img_url is not written.

[eluser]GabrieleMartino[/eluser]
I got it work.

I just putted 777 permission to folder and putted

Code:

img_url = base_url().'captcha/'

Be good -.