====== setLang ======
{#JAPI Joomla.Framework Document JDocument::setLang #}

Sets the global document language declaration. The default is English.
===== Syntax =====
void setLang	( **$lang** )
| **$lang** | string | is a string containing the new language of the document. This parameter is optional and if omitted defaults to 'en-GB'. |

===== Examples =====
Set the language of the current document.
<code php|Example>
global $mainframe;

$document =& JFactory::getDocument();
$document->setLang( 'en-US' );

echo "Language: " . $document->getLang();
</code>
Might produce:
<code php|Result>
Language: en-US
</code>