Using two iFrame in the same page is not working in firefox

Question

I'm using two iframes in my page one for menu page and another for some default page. So, I used two iframes for loading the external pages. It is working fine in IE. But, not in firefox. The second iframe is not displayed. Please help me out.

<table id="tbleMain" width="100%" align="left"  >
                <tr align="left" style="width: 10%; height: 10%">
                    <td align="left" colspan="2">
                        <img src="../Images/Logo.JPG" height="70px" width="1000px"/>
                    </td>
                </tr>
                <tr style="height:  90%">
                    <td width="3%">
                        <iframe id="frame1" name="f1" align="left" frameborder="0" width="200px" height="500px" src="Menu.jsp"/>
                    </td>
                    <td width="97%" valign="top" align="left">

                            <iframe id="frame2" name="f2" align="left" frameborder="0" width="200px" height="500px" src="SrchEnv.jsp"/>

                    </td>
                </tr>

            </table>

Answer 1

change your first iframe tags like below:

<iframe id="frame1" name="f1" align="left" frameborder="0" width="200px" height="500px" src="Menu.jsp"></iframe>

It should be ok,but I don't know why it run in this way.