Getting value of selected Radio group

[Peter]

Hi all,

Sorry if this is an obvious/common question, but I'm trying to get the
value of a radio button using JavaScript.

Where I can easily get the value of a text field:

document.myform.myfield.value

how do I get the value of the *selected* radio button? E.g. given:

<input type="radio" name="mygroup" value="1">
<input type="radio" name="mygroup" value="2">

using:

document.myform.mygroup.value

doesn't work as there are two (in this case) radio buttons with the same
name!

Thanks in advance!

Peter.

 

[N Clements]

Try using something like the following in your javascript function:


var val = 0;

for( i = 0; i < document.myform.mygroup.length; i++ )
{
if( document.myform.mygroup.checked == true )
val = document.myform.mygroup.value;
}
alert( "val = " + val );

Hope that helps.

N. Clements
Brainbench MVP for _Javascript
www.brainbench.com
(e-mail address removed).242.mailshell.com
Remove 2nd through 4th spam to reply.

 

[Peter]

Try using something like the following in your javascript function:


var val = 0;

for( i = 0; i < document.myform.mygroup.length; i++ )
{
if( document.myform.mygroup.checked == true )
val = document.myform.mygroup.value;
}
alert( "val = " + val );

Hope that helps.

Thanks loads - thats great!!

 

[Steve van Dongen]

Try using something like the following in your javascript function:


var val = 0;

for( i = 0; i < document.myform.mygroup.length; i++ )
{
if( document.myform.mygroup.checked == true ) {
val = document.myform.mygroup.value;

break; // stop searching as soon as one is found
}

Thanks loads - thats great!!

Just add the break statement like above to reduce the amount of work
being done.

Regards,
Steve