These files are required for CAPTCHAs and uploads.
By default, the location of these files is in the same folder as Zebra_Form.php and the script will automatically
try to determine both the server path and the URL to these files. However, when the script is run on a virtual
host, or if these files were moved, the script may not correctly determine the paths to these files. In these
instances, use this method to correctly set the server path - needed by the script to correctly include these
files, and the URL - needed by the client-side validation to include these files.
Also, for security reasons, I recommend moving these two files by default to the root of your website (or another
publicly accessible place) and manually set the paths, in order to prevent malicious users from finding out
information about your directory structure.
If you move these files don't forget to also move the font file from the "includes" folder, and to manually
adjust the path to the font file in "process.php"!