php-mysql problem gives birth to Bill Viewer

3 days after discovering I broke our web server's php-mysql functionality by fixing it (groan), I finally finished my Bill Viewer program.

It allows the user to view all bills of any customer and quickly copy to the clipboard the VAT and UC details of an individual bill or a range of bills. There is an option to sort the details by month or by bill type.

Now I'm planning on including the ability to PREVIEW and PRINT any bill, but perhaps I'll do that in BCMS first (Ledger module).