Common client side and server side code

[kickstart]

Hi

 

I have an app which is very heavily dependent on javascript and ASP. One part written in javascript calculates some figures (based on formulas stored in a database), based on the data on screen. This works fine.

 

However similar figures are now required as part of an extracted report, generated on the client side.

 

Short of duplicating the javascript code in php, any suggestions? While duplicating the code is possible it just means double the maintenance (and a good chance that at some point they will produce different results).

 

All the best

 

Keith