/**
 * Switch the current sessions language.
 * @param languageKey The key of the language to which to switch to.
 */
function switchLanguage(languageKey, destURL) {
	try {
		if(typeof(destURL)=='undefined'){
			destURL = location.href;
		}
		
		document.getElementById('lang').value = languageKey;
		document.getElementById('url').value = destURL;
		document.getElementById('switchLanguageForm').submit();
	}
	catch (e) {
		alert('Error on switching language: ' + e);
	}
}