#376: ajax_data.js, add 'flag_ajax' local variable
#376: ajax_data.js, minor indentation
#376: ajax_data.js, define 'flag_ajax' based on form field
#376: ajax_data.js, add comment to 20c1002
#376: ajax_data.js, add 'if ( flag_ajax )' around 'ajax()'
#376: ajax_data.js, indent code inside 'if ( flag_ajax )'
#376: ajax_data.js, change 'console.log()' message for failed AJAX
Merge pull request #378 from jeff1evesque/js_ajax_data

#376: Prevent unnecessary AJAX call in 'ajax_data.js'
Merge pull request #381 from jeff1evesque/python_data_validator

#374: Adjust 'data_validator.py', 'XML file' case
Merge pull request #383 from jeff1evesque/python_data_validator

#374: data_validator.py, remove 'is not None'
#374: data_validator.py, provide 'else' statement