Javascript代码在Firefox中不起作用

Ale*_*lex 1 javascript firefox

在图像中单击我编写用于调用java的代码

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
        <title>New Page 1</title>
    </head>
    <body>
        <table cellpadding="0" cellspacing="0" width="311">
            <tr>
                <td height="14">
                    <img onclick ="SignIn();" border="0" src="../images/Sign_In.gif" width="80" height="28">
                </td>
            </tr>
        </table>
        <script type="text/javascript" language="JavaScript">
            function SignIn(){
                alert();
            }
        </script>
    </body>
</html>
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上面的代码在Internet Explorer中工作正常,但在FireFox中没有.问题是什么?

mad*_*lor 6

试试这个:

{ alert(); document.getElementById('FormSignIn').submit(); } 
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文档:document.getElementById