Stupid HTML question: possible for user to uncheck radio button?

Chalk this one up as a true brain-fart moment...but as they say in "Dirty Harry," I needs to know.... :)

Is it possible for a user to uncheck a radio button once it's been checked, without using JavaScript?  I could have sworn I was able to do this by using a couple keys on my keyboard, but I'm either remembering incorrectly or can't get the combination of keys/mouseclicks to work.  

I mocked up a page with a couple radio buttons and, sure enough, I can't seem to do it.  I tried the space bar; holding the shift key and then clicking it; hitting the delete key....nothing.  

If this is possible, please share the keyboard combination.  Thanks!
LVL 2
cacklebunnyAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

knightEknightCommented:
perhaps by resetting the form ... or by reloading the page.

Add a reset button to the form:

<INPUT type="reset" name="btnReset" value="Reset" />
0
M256Commented:
Once it is checked on the page, it is not supposed to be possible to uncheck it except by checking another in the series.

However, if you are worried about a hacker doing something, it is possible.  Anybody can copy the html page to their computer, unselect the default (if you have one), change the action page of the form to your remote page, and submit it.

Matthew
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
cacklebunnyAuthor Commented:
M256:  No security concerns, this is just simple curiosity.   I seem to have recalled there was a way for the end-user to do it if they knew the right combination of keystrokes/mouseclicks.  I thought it was the spacebar but all that does is toggle the radio button from one choice to the other.  

I know the "reset" button will do it provided the designer actually places a reset button in the form.  I also know you can do it with JavaScript --but again, only if the designer provides this. For the sake of argument, assume that the form has neither a reset button nor a link that causes a JavaScript function to fire.

Thanks.
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

M256Commented:
I cannot say absolutely, but I don't think it is possible with Internet Explorer.

Maybe a non-standard browser?

I found several places where people were trying to deselect radio buttons, but they were using JavaScript.
Example:
http://www-10.lotus.com/ldd/46dom.nsf/0/4c663084da65131685256d630072af1f?OpenDocument

Matthew
0
superslamwichCommented:
Here's a bookmarklet that will do it regardless of whether the designer provides a reset button:

javascript:for(i=0;i<document.forms.length;i++){document.forms[i].reset()}

{Slam}
0
cacklebunnyAuthor Commented:
M256:  

Are you saying IE is a standard browser? ;)

I think you're right in that it must be impossible without a reset button or JavaScript.  So unless someone posts otherwise soon, I'll be passing out the points to you.... "not possible" appears to be the right answer.

As far as other browsers, I've tried to uncheck it using Mozilla and also Netscape 7 and no luck.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
HTML

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.