[原]评分显示

window.onload = function () {
            var tds = document.getElementById('tb').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 = '★';
                        if (tds[j] == this) {
                            break;
                        };
                    };
                };
                tds[i].onmouseout = function () {
                    for (var i = 0; i < tds.length; i++) {
                        tds[i].innerText = '☆';
                    }
                };
            };
        };
    <table id="tb" border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td>☆
            </td>
            <td>☆
            </td>
            <td>☆
            </td>
            <td>☆
            </td>
            <td>☆
            </td>
        </tr>
</table>