Charts/graphs in php - upgrade existing charts

This project is a followup of a succesful earlier project: Write php code that takes data from mysql database and generates chart on the fly ( [login to view URL] ) -Chart specifications remain unchanged. -Data is in roughly the same format -Difference: we would like have charts for more products (instead of one product in previous project) You will need to - modify the existing coding to generate charts so that other products can be shown also - Modify the existing user interface for the product selection So basically it's a css/html and php coding challenge. More info and existing chart url on demand.