JS投票系统

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>投票系统</title>
<script type="text/javascript">
    function initialEvents() {
        var tds = document.getElementById('mytable').getElementsByTagName('td');
        for (var i = 0; i < tds.length; i++) {
            tds[i].onmouseover = function () {
                for (var j = 0; j < tds.length; j++) {
                    tds[j].innerText = '☆';
                }
                for (var j = 0; j < tds.length; j++) {
                    tds[j].innerText = '★';
                    if (tds[j] == this) {
                        break;
                    }
                }
            }
        }
    }
</script>
</head>

<body onload="initialEvents();">
<table border="0" cellspacing="0" cellpadding="0" id="mytable">
  <tr>
    <td>☆</td>
    <td>☆</td>
    <td>☆</td>
    <td>☆</td>
    <td>☆</td>
  </tr>
</table>
</body>
</html>

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