Function: tst_name
Parameter: A string.
Returns: true if the given string has the form

string1, string2 letter

where both strings must be all lowercase letters except for the first
letter and letter must be uppercase; false otherwise.

Write, test, and debug (if necessary) JavaScript scripts for the problem that above. When required to write a function, you must include a script to test the function with at least two different data sets. In all cases, for testing, you must write an HTML file that references the JavaScript file.