function cp_ville(cp)
{
	if(document.getElementById('cp').value.length == 5)
	{
		new Ajax.Request('ajax.php',
		{method: 'post', parameters: 'cp='+cp, onSuccess: function(ajax)
			{
				$('ville').update(ajax.responseText);
			}
		});
	}
}

function lang_change(lang)
{
	new Ajax.Request('/ajax.php',
	{method: 'post', parameters: 'lang='+lang, onSuccess: function(ajax)
		{
			$('ville').update(ajax.responseText);
		}
	});
}