How would this be achieved?

[Sushigal]

Hi all,

Taking this website link as an example http://www.tartantrader.co.uk/jewell...ue-p-1037.html

I am wondering how the 'Please enter both the height and width in millimeters (mm)' section has been achieved.

like the example site, we want a price assigned to the number a user inputs into a textbox, the higher the numbers the higher the price. Im just wondering how this could be implimented.

Many Thanks

Sushi

[kuroi]

Looks like a custom piece of javascript to me.