Radio Buttons are mutually exclusive. Only one button
may be selected. Selecting an alternate button in a Radio
Button group will automatically remove the previous selection.
To identify a group of radio buttons, all the radio buttons
must have the same name. Notice that the name for both
radio buttons is 'newsletter'. The value for each is different.
The first one will appear selected when the code is displayed.
<form method="post" action="http://wwwebworks.biz/bit112/showFormData.php" name="initial">
<label><input type="radio" name="newsletter" value="yes" checked /> yes</label>
<label><input type="radio" name="newsletter" value="no" /> no </label>
</form>
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