How can I create an Invoice web application (preferable PHP) with customer look-up (with option to add new customer) and a grid to add items (search for items) with a total line below the grid. The grid should have the functionality to retrieve the item price and compute an extended price based on quantity and unit price.
Print functionality would also be a great addition.
I suppose I'm asking for too much here, so I'll restate my request. Is there a GUI tool to allow me to design a HTML invoice form (with the features above) with AJAX functionality built in? I should be able to deal with the server-side calls.
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