File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes HTML, CSS and JavaScript and the fly likes help with radio buttons Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Head First Android this week in the Android forum!
JavaRanch » Java Forums » Engineering » HTML, CSS and JavaScript
Bookmark "help with radio buttons" Watch "help with radio buttons" New topic

help with radio buttons

kevin comario
Ranch Hand

Joined: Jun 29, 2002
Posts: 65
I have a few groups of radio buttons that I need to evaluate using JavaScript before i submit it to another page using the GET method in my code.
the question I have is that my radio buttons are initally unchecked how do i go about evaluating my form to find out if the client checked one of my radio buttons.
here is my code so far:

Could i possibly just have a lot of small forms for each individual group of radio buttons?
Eric Pascarello

Joined: Nov 08, 2001
Posts: 15385
Look in my sig
Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63048

Unlike most other form elments, the reference to the radio buttons by name evaluates to a collection rather than a single element.
So in your page document.pro1.classes references a collection of the radio elements named 'classes'. You can loop through this collection looking for which one has a 'checked' attribute set to true.

[Asking smart questions] [Bear's FrontMan] [About Bear] [Books by Bear]
kevin comario
Ranch Hand

Joined: Jun 29, 2002
Posts: 65
Thanks for the help! i did not know about the checked attribute. That makes everything clear.
I agree. Here's the link:
subject: help with radio buttons
It's not a secret anymore!