Sorting html tables

I have just committed the code to sort HTML tables. So far this applies to only certain scripts, but to add it to any is easy, and should be done in all by tomorrow.

Here is the result of searching for stock items in SelectProduct.php

Now by clicking at the top of the Description column the table is automatically sorted and shows

and the items are sorted by item description. Clicking on that column again shows:

and the order of the items is reversed. This also holds true for the code column. I have also done the SelectCustomer.php script and the SelectSupplier.php script.

All this is done with one simple JavaScript function and minimal changes to the scripts.

This and the changes committed by Fahad earlier today means a huge leap forward for usability in KwaMoja. Hope you enjoy this new code.