Problerms adding my Hacker Safe logo.

[milobloom]

I am trying to add my hacker safe logo.
Thought putting it under my credit card logos would be a good place:

$content = '';
$content .= '<div id="' . str_replace('_', '-', $box_id . 'Content') . '" class="sideBoxContent">' . "\n";
$content .= '<img id="ccVisa" class="cc_img" src="images/cc_logos/logo_ccVisa.gif" />' . "\n" .
            '<img id="ccAmex" class="cc_img" src="images/cc_logos/logo_ccAmex.gif" />' . "\n" .
            '<img id="ccDiscover" class="cc_img" src="images/cc_logos/logo_ccDiscover.gif" />' . "\n" .
            '<img id="ccMC" class="cc_img" src="images/cc_logos/logo_ccMC.gif" />' . "\n" .
            '<img id="ccPaypal" class="cc_img" src="images/cc_logos/ppslv2.gif" />' . "\n";
$content .= '<a href="https://www.scanalert.com/RatingVerify?ref=www.nothingbutcostumes.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.nothingbutcostumes.com/13.gif" alt="HACKER SAFE certified sites prevent over 99.9% of hacker crime." oncontextmenu="alert('Copying Prohibited by Law - HACKER SAFE is a Trademark of ScanAlert'); return false;"></a>
' . "\n";
$content .= '</div>' . "\n";
?> 

This gives me this error:

Parse error: parse error, unexpected '<' in /includes/templates/....../sideboxes/tpl_blank_sidebox.php on line 20

Whats the proper way to add this??