Thread: Option button not checked

Hello,

- I design a form with Bluevoda like this.

<FORM name="register" action="mail.php" method="post">
.
.
<DIV style="Z-INDEX: 1; LEFT: 144px; OVERFLOW: hidden; WIDTH: 25px;
POSITION: absolute; TOP: 39px; HEIGHT: 25px" align=left>
<INPUT type=radio value="Bpk" name="bi">
</DIV>

<DIV style="Z-INDEX: 3; LEFT: 216px; OVERFLOW: hidden; WIDTH: 25px;
POSITION: absolute; TOP: 40px; HEIGHT: 25px" align=left>
<INPUT type=radio value="Ibu" name="bi">
</DIV>
.
.
<DIV style="Z-INDEX: 31; LEFT: 145px; OVERFLOW: hidden; WIDTH: 65px;
POSITION: absolute; TOP: 531px; HEIGHT: 30px" align=left>
<INPUT type=submit value="kirim" name="register">
</DIV>
.

- Both input type=radio are not CHECKED.
- After hitted the submit button to redirected to "mail.php",
you got undefined "bi" in "mail.php".
- But it is OK when one of them is CHECKED.

Should you always CHECKED one when working with input type=radio ?

Radiobutton groups always must have 1 button selected.
If this behaviour is not whta you want, use checkboxes instead.

Hello,

Using checkboxes, users have the opportunity to select none.
That is not what I want. My solution is, add one option button belonging
to the same group which I select. Then in some way hide this. This is to
get out of the warning undefined variable. When users do not select the
non CHECKED button, force them to select one before going further.
What is your opinion ?

Originally Posted by Pablo

Radiobutton groups always must have 1 button selected.
If this behaviour is not whta you want, use checkboxes instead.

You will have to use javascript to do this, or add an extra radio button and make it invisible.