why isnt my CODE being INSERTED in the correct PLACE?

[BabeWalls]

I am trying to place a script on my page which inserts a random piece of code. The scipr is working but for some reson it isn't placing it in the position that I want it to.
It always places it in the very top left of the page befre anything else.

The important part of the script is:

<TABLE cellSpacing=0 cellPadding=0 align=center border=0>
<tr><td rowspan="2">
%% banner(); %%
</td>
<td>
<!-- begin tpl_footer //-->
%tpl_footer%
<!-- end tpl_footer //-->
</td></tr>
<TR>
<TD align=middle>
<!-- begin tpl_body //-->
%tpl_body%
<!-- end tpl_body //-->
</TD>
</TR>
</TABLE>

The %% banner(); %% part is the bit which calls the random code but it isn't calling it into that cell.

Anyone know why?

[jburfield]

what does banner() look like?

How much is it returning into the page?

If you have something like this at the end of it:

print($value);

OR

echo $value;

try changing it to:

return $value;

-- Jason