unselectable="ON" and contenteditable="false" doesn't work for TABLE TAG.

 

I suggest you do something like this:

 

<table style="WIDTH: 320px; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=3 border=1>
    <tbody>
        <tr>
            <td><span unselectable="ON" and contenteditable="false">Hello World</span></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </tbody>
</table>