function installExtensions($mainmsg)
 {
     jimport('joomla.installer.helper');
     jimport('joomla.installer.installer');
     jimport('joomla.filesystem.file');
     jimport('joomla.filesystem.folder');
     $db =& JFactory::getDBO();
     $installer = new JInstaller();
     //      $installer->_overwrite = true;
     $pkg_path = JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_joomailermailchimpintegration' . DS . 'extensions' . DS;
     $pkgs = array('com_joomailermailchimpsignup.zip' => 'Joomlamailer Signup component', 'plg_joomailermailchimpsignup.zip' => 'Joomlamailer Signup plugin', 'mod_mailchimpsignup.zip' => 'MailChimp Signup', 'mod_mailchimpstats.zip' => 'MailChimp Admin Stats', 'plg_fmsts.zip' => 'MailChimp STS plugin', 'plg_joomlamailer_JomSocial.zip' => 'JomSocial plugin', 'plg_joomlamailer_CommunityBuilder.zip' => 'CommunityBuilder plugin');
     $mainframe =& JFactory::getApplication();
     foreach ($pkgs as $pkg => $pkgname) {
         if ($pkg == 'plg_joomlamailer_CommunityBuilder.zip') {
             $cbinstaller = JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_comprofiler' . DS . 'library' . DS . 'cb' . DS . 'cb.installer.php';
             if (JFile::exists($cbinstaller)) {
                 require_once $cbinstaller;
                 require_once JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_comprofiler' . DS . 'plugin.class.php';
                 require_once JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_comprofiler' . DS . 'plugin.foundation.php';
                 require_once JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_comprofiler' . DS . 'library' . DS . 'cb' . DS . 'cb.database.php';
                 require_once JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_comprofiler' . DS . 'comprofiler.class.php';
                 $installer = new cbInstallerPlugin();
                 $installer->installArchive($pkg_path . $pkg);
                 $installer->extractArchive();
                 if ($installer->install()) {
                     $query = "UPDATE #__comprofiler_plugin SET `published` = '1' WHERE `folder` = 'plug_joomlamailercbsignup'";
                     $db->setQuery($query);
                     $db->query();
                 }
             }
         } else {
             $package = JInstallerHelper::unpack($pkg_path . $pkg);
             if ($installer->install($package['dir'])) {
                 $msg = 1;
                 $msgtext = "{$pkgname} successfully installed.";
             } else {
                 $msg = 0;
                 $msgtext = "ERROR: Could not install the {$pkgname}. Please install manually.";
             }
             if (!$msg) {
                 $mainframe->redirect('index.php', $msgtext . "\n" . $mainmsg);
             } else {
                 if ($pkg == 'com_joomailermailchimpsignup.zip') {
                     // remove signup component from backend menu
                     if (version_compare(JVERSION, '1.6.0', 'ge')) {
                         $query = "DELETE FROM #__menu WHERE `title` = 'com_joomailermailchimpsignup';";
                         $db->setQuery($query);
                         $db->query();
                     }
                 } else {
                     if ($pkg == 'mod_mailchimpstats.zip') {
                         $query = "UPDATE #__modules SET published = '1', position = 'cpanel', ordering = '-1' WHERE `module` = 'mod_mailchimpstats'";
                         $db->setQuery($query);
                         $db->query();
                         if (version_compare(JVERSION, '1.6.0', 'ge')) {
                             $query = "SELECT id FROM #__modules WHERE `module` = 'mod_mailchimpstats'";
                             $db->setQuery($query);
                             $moduleID = $db->loadResult();
                             $query = "INSERT INTO #__modules_menu (moduleid, menuid) VALUES ('" . $moduleID . "', '0')";
                             $db->setQuery($query);
                             $db->query();
                         }
                     } else {
                         if ($pkg == 'plg_joomlamailer_JomSocial.zip') {
                             if (version_compare(JVERSION, '1.6.0', 'ge')) {
                                 $query = "UPDATE #__extensions SET `enabled` = '1' WHERE `element` = 'joomlamailer' AND `folder` = 'community'";
                             } else {
                                 $query = "UPDATE #__plugins SET `published` = '1' WHERE `element` = 'joomlamailer' AND `folder` = 'community'";
                             }
                             $db->setQuery($query);
                             $db->query();
                         }
                     }
                 }
             }
         }
     }
     $path = JPATH_ADMINISTRATOR . DS . 'components' . DS . 'com_joomailermailchimpintegration' . DS . 'extensions';
     if (JFolder::exists($path)) {
         JFolder::delete($path);
     }
 }