Linking to jquery and javascript is not working -


in coda 2, can link css when link lot of stuff doesn't work because nothing happens, jquery. wrong this? btw here far in jsbin if matters

main.html

<!doctype html> <html> <head>  <link rel="stylesheet" type="text/css" href="planets.css"> <script src="planets.js"></script> <script src="http://code.jquery.com/jquery-2.0.3.min.js"></script>  <title>planets</title> </head>

planets.js:

$('#submit').click(function () {     var checkedplanet = $("input[name='planets']:checked").val();    $("input:radio").attr("checked", false);    var age = document.getelementbyid('age').value;   var newage;   if(checkedplanet==='mercury'){     newage = math.round(age/0.241);     alert("you be"+" "+newage+" "+ "years old on mercury!");   }   if(checkedplanet==='venus'){     newage = math.round(age/0.615);     alert("you be"+" "+newage+" "+ "years old on venus!");   }   if(checkedplanet==='earth'){     alert('you be'+" "+ age*1+" " +'on earth! duh!');   }   if(checkedplanet==='mars'){     newage=math.round(age/1.88);     alert("you be"+" "+newage+" "+ "years old on mars!");   }   if(checkedplanet==='jupiter'){}  });

what quentin said code example:

<script src="//code.jquery.com/jquery-2.0.3.min.js"></script> <!-- lose http:, , jquery load on https -->     <script src="planets.js"></script>      //wait until dom ready     $(function(){         //your code     });

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