How can I make these into one table with different classes?

[Audiologic]

<table width="764" height="50" cellpadding="0" cellspacing="0" class='backG' >
<TR><TD width="516" height="44">&nbsp;</TD></TR></TABLE>
<table width="764" height="106" cellpadding="0" cellspacing="0" class='backG2'>
<TR><TD height="100">&nbsp;</TD></TR></TABLE>

How can I make Class 'BackG' and 'BackG2' on the same table? I need to do this because i cant seem to eliminate the spacing between these two tables.

Thanks!!

Matt

[alvo]

<td class="BackG"> gives that style to everything within that set of <td> and </td> tags.