为什么下面JS在火狐下面无效？

<!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>
<script language="JavaScript">
window.setInterval("timeShow.innerHTML=new Date().toLocaleString()+'&nbsp;&nbsp;星期'+'日一二三四五六'.charAt(new Date().getDay());",1000);
</script>
</head>
<body>
<p id="timeShow" />
</body>
</html>

解决方案 »

  1.   


    <!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>
    <script language="JavaScript">
    window.setInterval("document.getElementById('timeShow').innerHTML=new Date().toLocaleString()+'&nbsp;&nbsp;星期'+'日一二三四五六'.charAt(new Date().getDay());",1000);
    </script>
    </head>
    <body>
    <p id="timeShow" />
    </body>
    </html>