Как определить какой сейчас выбран язык? - Полезные приёмы, трюки, решенные задачи

$document = & JFactory::getDocument();
$curlang = $document->language;
if ($curlang == 'ru-ru') {
echo '<img src="images/rus.gif" />';
} else { }

<a href="<?php echo $this->baseurl ?>/">

echo '<img src="templates/шаблон/images/rus.gif" />';

$curlang = $document->language;

JPlugin::loadLanguage( 'com_alpharegistration' );

файл default.php
<?php
echo "<script type=\"text/javascript\">var language_page = \"".$_GET['lang']."\";</script>";
?>
...
<script type="text/javascript">
   $(document).ready(function(){  
      checkEssentialInfo(<?php echo $row[0]; ?>, language_page  );
   });
</script>

...
function checkEssentialInfo(advertID, language_page) { 
		
		$("#statusESSENTIALINFO"+advertID).html('<img src="'+myDomain+'components/com_alpharegistration/assets/images/loader.gif" align="absmiddle">');
				
		$.ajax({  
			[b]type: "GET",[/b]  
			url: myDomain+"components/com_alpharegistration/assets/scripts/check_info.php",
			[b]data: "advertid="+ advertID +"&lang="+ language_page,  [/b]
			success: function(msg)
			{  	   
				$("#statusESSENTIALINFO"+advertID).ajaxComplete(function(event, request, settings)
				{		
					...							   
				});	
			}	   
	  }); 

	
};

[b]файл check_info.php[/b]
<?php
define( '_JEXEC', 1 );

if (stristr( $_SERVER['SERVER_SOFTWARE'], 'win32' )) {
	define( 'JPATH_BASE', realpath(dirname(__FILE__).'\..\..\..\..' ));
} else define( 'JPATH_BASE', realpath(dirname(__FILE__).'/../../../..' ));

define( 'DS', DIRECTORY_SEPARATOR );

require_once ( JPATH_BASE.DS.'includes'.DS.'defines.php' );
require_once ( JPATH_BASE.DS.'includes'.DS.'framework.php' );
$mainframe =& JFactory::getApplication('site');
$mainframe->initialise();

jimport( 'joomla.plugin.plugin' );

$arg_params = &JComponentHelper::getParams( 'com_equipregistration' );
[b]JPlugin::loadLanguage( 'com_equipregistration' );[/b]


if(isset($_GET['advertid']) and isset($_GET['lang']))
{
	$advertid = $_GET['advertid'];
	
	...some code...
           <?php echo '0'.'<font color="red">'.JText::_( 'ARG_INCOMPLETE' ).'</font>'; ?>    // всегда берет русский вариант
          
	
}
else
{
	echo '0'.'<font color="red">'.JText::_( 'ARG_UNDEFINED' ).'</font>';  // всегда берет русский вариант
}
?>

$lang=$_GET['lang'];
$local_lang = "en-gb";
if ($lang=="ru")
	$local_lang = "ru-ru";
if ($lang=="es")
	$local_lang = "es-es";
$curLanguage = JFactory::getLanguage();
$curLanguage->setLanguage($local_lang);	
JPlugin::loadLanguage( 'com_alpharegistration' );

<a href="index.php"><img src="<?php echo $this->baseurl ?>/templates/<?php echo $this->template?>/images/<?php echo $this->params->get('templateColour'); ?>/logotype.gif" style="border:0;" height="82px;" width="880px;" alt="logotype NSC-Olympic"/></a>

<?php 	$document = & JFactory::getDocument();
		$curlang = $document->language;
		if ($curlang == 'ru-ru') {
		echo '<img src="templates/<шаблон>/images/logo_ru.jpg" />';
		} else {
		echo '<img src="templates/<шаблон>/images/logo_ua.jpg" />';
		}
?>