:
0.         IonCube Loader,      .
    testio5.php(  testio53.php   php 5.3)         www..ru/testio.php. 
      -  ,    "Site error: the file...",         .


1.    .   ( templates/_default_/plugins/dialog_templates)      _default_. 
    ,      .
  plugins\p_ajaxmessages\ajax    -  php5+  php5.3.      php  .


2.        (\templates\_default_\modules\mod_usermenu.tpl.)
    <span class="my_messages">
        {if $newmsg.total}
            <a class="has_new" href="javascript:d_pm({$id})" title="{$LANG.NEW_MESSAGES}: {$newmsg.messages}, {$LANG.NEW_NOTICES}: {$newmsg.notices}">{$LANG.USERMENU_MESS} ({$newmsg.total})</a>
        {else}
            <a href="javascript:d_pm({$id})">{$LANG.USERMENU_MESS}</a>
        {/if}
    </span>

 "href"   .

3.       (\templates\_default_\components\com_users_profile.tpl)
        onclick  href (    LANG.WRITE_MESS  LANG.MY_MESS)

<td><a class="ajaxlink" href="javascript:void(0)" title="{$LANG.WRITE_MESS}: {$usr.nickname|escape:'html'}" onclick="javascript:d_pm({$usr.id})">{$LANG.WRITE_MESS}</a></td>

<td><a href="javascript:d_pm({$usr.id})" title="{$LANG.MY_MESS}">{$LANG.MY_MESS}</a></td>

4.  ,      - 
,      href="javascript:d_pm({$id})" -  $id -  id ,     .

5.       .      ( ),       .
5.   (   )    ,        .