It's just the standard valid code for the checkbox input:
<input type="checkbox" name="freqs[]" value="1" />
<input type="checkbox" name="freqs[]" value="2" />
<input type="checkbox" name="freqs[]" value="3" />
<input type="checkbox" name="freqs[]" value="4" />
<input type="checkbox" name="freqs[]" value="5" />
After the second selection of the comboBox, it triggers a jQuery/AJAX call to a php function which in turn, generates the inputs as above.
My form is NOT submitted via AJAX/Serialize but by a standard PHP action/POST.
All values of the form including the comboxBox values (and including the one generated via jQuery/AJAX) will post. But, the checkbox values will not.
I can conform this by using php "print_r($_POST)"...
Again, although I can physically see the list of the checkboxes, it's as if the form does not....