Hello,

I wanted to ask if anyone knows a good tutorial that I can cretae an invoice system using javascript/ajax, php and mysql??

Basically I will have a webpage with a form.

Client Name (Dropdown box) from MySQL table.

On the form I will have about 15 rows with 4 columns

Products Qty Price Each Line Total
Item 1 1 £10 £10
Item 2 5 £5 £25
Item 3 2 £25 £50

Then at the bottom

Sub-Total
Tax
Total

Once the items are entered the Line Total, Sub-Total, Tax and Total need to be automatically calculated using javascript or ajax.

I only want the rows with products entered to be entered into the dtabase with the totals. All empty rows are to be ignored and not entered into database or if that cannnot be avoided not to show on order page. Only rows with products and costs to show.

I know this is a big task but I only want to be pointed to a tutorial please that will help me achieve this.

Thank you