[jQuery] Interacting with TR an TD

[jQuery] Interacting with TR an TD


Hello all, I'm getting used to the excellent jQuery library and I need
some help of more experienced programmers. I have this simple table:
<table class="table">
    <tr>
        <td>content</td>
        <td>content</td>
        <td>content</td>
    </tr>
    <tr>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
    </tr>
    <tr>
        <td>content</td>
        <td>content</td>
        <td>content</td>
    </tr>
</table>
What I need is to add a class to the TRs that have children TDs that
have &nbsp; inside (and ONLY &nbsp;)... I'm having problems because
&nbps; is not text, it's html code...
Thanks in advance!