Split javascript functions into separate javascript files

This would make the javascript easier to work on as multiple functions could be viewed simultaneously. It would make the storage of the page a little more cumbersome as there would be multiple files. Probably would want to put these files in a subdirectory called 'javascript' in public_html so they could be loaded like this:

<script src="javascript/WriteItem.js"></script>
<script src="javascript/ReadItem.js"></script>
<script src="javascript/DelItem.js"></script>

etc...