vb arcade error

[GMbuddha]

ok well when i put in the code for the arcade i get this error

Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in /home/stone/public_html/forums/includes/functions.php on line 1887

but here is lines 1885-1890

//$debughtml .= "<ul><a href=\"#\" onclick=\"set_cookie('vbulletin_collapse', ''); window.location=window.location\">vbulletin_collap se</a>:<br /><li>" . str_replace("\n", '</li><li>', $_COOKIE['vbulletin_collapse']) . "</li></ul>";
$debughtml .= "\n<form name=\"debugger\" action=\"\">\n<div align=\"center\">\n<!--querycount-->Executed <b>$query_count</b> queries<!--/querycount-->" . iif($_TEMPLATEQUERIES, " (<b>" . sizeof($_TEMPLATEQUERIES) . "</b> queries for uncached templates)", '') . " . ";
$debughtml .= " (<a href=\"" . htmlspecialchars_uni(SCRIPTPATH) . iif(strpos(SCRIPTPATH, '?') '?')'?')=== false, '?', '?','?','&amp;') . "tempusage=1\">Template Usage</a>) (<a href=\"" . htmlspecialchars_uni(SCRIPTPATH) . iif(strpos(SCRIPTPATH, '?') '?')'?')== false, '?', '?','?','&amp;') . "explain=1\">Explain</a>)<br />\n";
$debughtml .= "<select>\n\t<option>(Page Generated in $totaltime Seconds)</option>\n$messages</select>\n";

if (is_array($tempusagecache))

any of you guys know what the problem is?
the arcade work without this being in place where it is supposed to be in the install script

// declares the arcade image directory
$stylevar['imgdir_arcade'] = "images/arcade";

but when i add that line in i get the parse error any ideas's guys?