this code run in IE but not in FireFox .... help me !
<tr>
       <td colspan="3" align="left" class="tieude"> &nbsp; <strong><IMG width="15" height="15" border="0" style="cursor:hand;" onclick="explorer(this,'source/images/plus.gif','source/images/sub.gif','no1');" src="source/images/plus.gif">
                  Ph#7847;n gi#7899;i thi#7879;u</strong></td>
        </tr>
        <tr id="no1" style="display:none;">
          <td width="4%">&nbsp;</td>
                <td width="40%" colspan="2"><p>&nbsp;<strong>K</strong>hi
                    d#7841;y h#7885;c, ng#432;#7901;i ta có th#7875; dùng gif #273;#7897;ng #273;#7875; chèn vào
hai là ta s#7869; không bao gi#7901; quên #273;i#7873;u #7845;y ....&quot;</p>
</td>
</tr>

Please don't cross post the same message to multiple forums. Posting once is enough. I deleted your post to the HTML forum because you already posted that message here, and because this is a JavaScript question, it's off-topic for the HTML forum anyway.

Rather than assuming that because no one has helped, that someone would help in another forum, you might reconsider the way you're asking for help. You haven't provided enough information for anyone to answer your question.

Consider posting a URL to the web page, and consider posting the rest of the code. For instance, you are making an inline function call:

onclick="explorer(this,'source/images/plus.gif','source/images/sub.gif','no1');"

yet, you haven't provided the source code for this function.

Also, you are complaining about something not working in Firefox, but haven't described what isn't working. What does this code do? What do you expect to happen? What happens instead in Firefox?

Screaming for help but not providing enough information to be helped will get you nothing but stone cold silence.

Also see the link, "Smart Questions", in my sig.

Regards,
Rich

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Beginning CSS: Cascading Style Sheets For Web Design
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http://www.catb.org/~esr/faqs/smart-questions.html