need a super 'price quoting' type thing

[czenglish]

Hello there,
I would like to have a 'sort of thing' on my website which calculates prices for services using unit rate: i.e. they input no. of units (in my case words for translation) and that is calculated by the unit price and the full quote shown to them.
Thanks

:eek:

[czenglish]

Do you have a link to somewhere I could get some Java script for what you suggest? I'm a beginner as regards Java and usually adapt stuff from free Java sites. Many thanks...