قسمتی از کد html : <form id=”levels” name=”levels” action=”#”><fieldset><legend>Change Levels</legend></fieldset> <fieldset><input type=”radio” name=”level” id=”level0″ onclick=”setlevel(0)” /><label for=”level0″><b>Level 0: </b>Computer is totally dumb.</label></fieldset> <fieldset><input type=”radio&r ...