Good Morning; I have a Javascript calculator http://www.edi-cp.com/products_a_series_at_estimator.php Which works as intended in IE and I believe it worked in earlier versions of FF. However nothing happens when I use it in FF Version 3.5.2 nor with Version 3.0.11 When I initially installed the calculator FF was probably at Version 2.xxx. I am sure it worked then. What has changed? What must I do to my JavaScript to make FF 3.5.2 play nicely? Thanks for any help. Del