internet explorer - Selecting an html radio button dynamically through javascript does not work in IE -

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i want select radio button javascript. using simple html file test issue. code below works correctly on firefox , chrome, not work in ie (no version works). know why supplied code not work on ie, , how select radio button in ie?

<html> <head>     <script type="text/javascript">         function chooseone()         {             var randomchoice = math.round(math.random() * 2);              if(randomchoice == 0)             {                 document.getelementbyid("test0").checked = true;             }             else if (randomchoice == 1)             {                 document.getelementbyid("test1").checked = true;             }             else             {                 document.getelementbyid("test2").checked = true;             }         }     </script> </head> <body>     <input type="radio" id="test0" name="test" value="a" /> a<br />     <input type="radio" id="test1" name="test" value="b" /> b<br />     <input type="radio" id="test2" name="test" value="c" /> c<br />     <input type="button" name="click" value="choose" onclick="javascript:chooseone()" /> </body>

thanks in advance, spi

first of all, should give radio buttons same name, otherwise act if independent buttons:

<input type="radio" name="test" id="test0" value="a" /> a<br /> <input type="radio" name="test" id="test1" value="b" /> b<br /> <input type="radio" name="test" id="test2" value="c" /> c<br />

i'm guessing source of problem. further, once this, need set 1 radio button's checked true, automatically remove selection other buttons.


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