[forefront]

Here are the files and what they do:

anchor_fix.js - Fix anchor link if base url is defined for page
browser_identificator.js - checks the browser options.
change_all_checkboxes.js - uses for the selection all checkboxes.
change_states.js - uses for the state selection.
check_cc_number_script.js - checking the credit cart number.
check_clean_url.js - check the the clean urls format (in the admin zone).
check_db_click.js - checking the double click. For example, it denies to press "place order" button twice.
check_email_script.js - checking the the e-mail addresses format.
check_ip_address.js - check the IP address. (stop list module)
check_password_script.js - checking if the password is correct.
check_required_fields_js.js - checking if all of the request fields is filled on the forms.
check_zipcode.js - check the zip code length.
common.js - it's a general file. This file contents the basic variables and functions for the X-Cart working.
debug.js - the file uses in the debug mode.

editor.js
editor_common.js - These files uses in the webmaster mode.
editorns.js

iepngfix.js - fix the png image view in the Internet Explorer.

jquery-fix.js - these files uses for JavaScript framework, which X-Cart is used.
jquery-min.js

reset.js - reset all input data in the forms.
swfobject.js - uses for the flash files displaying.