JS在火狐里没效果

Question

 <td class="sec11" onmouseover="secBoard(9,0)">
function secBoard(o,n)
{
    secTable = eval("secTable"+o);
    mainTable = eval("mainTable"+o);    for(i=1;i<secTable.cells.length;i+=2)
    {
        secTable.cells[i].className="sec11";
    }
    //this.className="sec21";
    secTable.cells[(n+1)*2-1].className="sec21";
    
    for(i=0;i<mainTable.tBodies.length;i++)
    {
    
        mainTable.tBodies[i].style.display="none";
    }
    mainTable.tBodies[n].style.display="block";
}求各位大神

Answer 1

不要用secTable = eval("secTable"+o);这种方式获取元素。。
改用getElementById()

Answer 2

secTable = eval("secTable"+o);==》
secTable = document.getElementById("secTable"+o);//请确定是否有这个id

Answer 3

<div class="home5">
                                                <table border="0" width="100%" cellpadding="0" style="border-collapse: collapse"
                                                    height="22" id="secTable11002">
                                                    <tr>
                                                        <td class="sec01">
                                                            &nbsp;
                                                        </td>
                                                        <td class="sec11" onmouseover="secBoard(11002,0)">
                                                            金融讲堂
                                                        </td>
                                                        <td class="sec01">
                                                            &nbsp;
                                                        </td>
                                                    </tr>
                                                </table>
                                                <table id="mainTable11002" border="0" width="100%" cellpadding="0" style="border-collapse: collapse">
                                                    <tbody style="display: none">
                                                        <tr>
                                                            <td>
                                                                <uc8:ReList ID="rpt1304" runat="server" />
                                                            </td>
                                                        </tr>
                                                    </tbody>
                                                </table>
                                            </div>

Answer 4

for(i=1;i<secTable.cells.length;i+=2),我在火狐里看了控制台，是cells没有定义，所以不知道怎么解决

Answer 5

火狐里面没有cells集合你要想拿到cells就用secTable.rows[0].cells这样拿到第一行的cells集合
第二行第三行的celss以此类推