Ajax with submit button

[wheel]

I've got a couple ajax forms we've built, basically calculators that update web pages on the fly from databases/calcs on the server.

I notice that in a not-inconsequential number of visitors, the ajax doesn't work - the values don't populate.

Is this a common problem with a common solution? (i.e., wondering if my developer who is also new to ajax is doing something obviously wrong).

If not, is it possible to put a submit button at the bottom of the form that they can use instead of the autoupdate? Any tips on how that's done?

[whoisgregg]

If the percentage is lower than, say, 10% then you might just be seeing folks who are browsing with javascript disabled.

Otherwise, it could be a problem with the javascript code not functioning properly in a particular browser. I'd do a comprehensive cross-browser test (including multiple versions) to be sure. Or, if you are logging browser data, you might find that it's only IE6 users who are having the trouble and you can focus your efforts that way.