All the operations that you want to occur on this iteration are given in hidden form values. I.e.
<input type="hidden" name="_send_email" value="email.txt">.

Operations are done in the order specified in the HTML. For this reason, it is recommended that you specify the browser output last. All operations are optional except config file variable. Operations are denoted with a leading underscore. They are:

Personal config file:

_cfg_file - is used to set the file name and path to the config file for current form. This should not to be a URL, but a real file path; either absolute or relative to the script. This is only variable that uses filename with path. Other variables use filenames only. This is required variable.

Example:
<input type="hidden" name="_cfg _file" value="../www/templates/simple.cfg">

Send eMail:

_send_email - this sends email using the template in this tag's value. Script will send emails using templates defined in this variable.

Example:
<input type="hidden" name="_send _email" value="simple-email.txt">
Will use simple-email.txt as template for email.

Output to a file:

_out_file - this logs to a file using the template given in the value. Using this you will be able to create log files, textual DB files and CVS files or any other file with free format.

Example:
<input type="hidden" name="_out_file " value="simple-logfile.txt">
Will use simple-logfile.txt as template for logging [storing].

Browser out:

_browser_out - this displays the value's template in the browser. That can contain processed data. Also used for multiple pages form creation.

Example:
<input type="hidden" name="_browser_out " value="simple-preview.html">
Will display simple-preview.html after form submission. That can contain processed data.

Redirect URL:

_redirect - this redirects the browser to the URL given here.

Example:
<input type="hidden" name="_redirect " value="http://www.site.com/page.html">
After from processing script will redirect user browser to the specified URL.

Error processing:

_error_path - if an error occurs, this template is displayed by the browser. In addition all processing messages [such as required fields must be filled etc.] will arrive using this template.

Example:
<input type="hidden" name="_error_path" value="simple-error.html">

_error_url - if an error occurs, the browser is redirected to this URL.

Example:
<input type="hidden" name="_error_url" value="http://www.site.com/errorpage.html">

You can have more than one _send_email or _out_file, if you want more than one email sent or file appended to. In this case, you must specify a unique number or letter after each one- i.e. _send_email_1, _send_email_2, out_file_a, _out_file_b, _out_file_c. It really doesn't matter what you put after them, just as long as each operation is unique.

Round:

_round - store default precision for round function in arithmetic calculations - if set to "2", the default value of the round function will be rounded to two decimal points. See more info in the templates configuration - mathematical calculations…

Example:
<input type="hidden" name="_round " value="2">

Make sure the name of each field corresponds exactly to what you want it to replace in the templates.

Unique reference number:

Using unique_reference_number in the form script will generate unique reference number for every form submission. Use [unique_reference_number] as variable in all templates to output its value.

Example:
<input type="hidden" name="unique_reference_number">

Date and Time variable:

GMT_OFFSET - using this variable you will be able to adjust [%DATE_GMT] for your purposes.

Example:
<input type="hidden" name="GMT_OFFSET" value="+5">
Will increment [%DATE_GMT] variable with 5 hours.

Required value for Radiobuttons, checkboxes and select:

Some form elements do not give to program any information if user did not use them. For exapmple checkbox:

<input type="checkbox" name="rm_fashion" value="classic">

If user will not check this checkbox then program will not have any data and it will be not recognized as required. To solve this problem you need to add additional:

<input type="hidden" name="rm_fashion" value="default">

If user will not check ckeckbox then program will receive data and will be able to recognize that user did not check ckeckbox.

Example:
<input type="hidden" name="rm_fashion" value="default">
<input type="checkbox" name="rm_fashion" value="classic">
Checkbox will be processed as required

Multi Separator:

_multi_separator - used with "m" switch value, specifies which character(s) to use to separate multiple values. Default is ",".

Example:
<input type="hidden" name="_multi_separator" value="-">
Will separate multiple values with "-".