...
<input type="radio" name="radio" id="radio1" />
<input type="radio" name="radio" id="radio2" />
..
Supposed it's submited with method="POST".
...
<input type="radio" name="radio" id="radio1" />
<input type="radio" name="radio" id="radio2" />
..
Supposed it's submited with method="POST".
you can check the value of the item in the response tag - give each of your radio buttons in the group gets a value.
Then use the name of your radio button to access the request object for that name. The value indicates which is checked.
You should add a value to your input radio.
<input type="radio" value="somevalue" name="something">