function doAjax(param) {
	if (typeof(AJAXCbo)!="undefined") {
		AJAXCbo.DoPostBack(param,'');
	}
}

function changeLang(lang) {
	if (document.forms[0]!=undefined && document.forms[0].lang!=undefined) 
	{
		document.forms[0].lang.value=lang;

		if (typeof(AJAXCbo)!="undefined") {
			doAjax('lang');
		} else {
			document.forms[0].submit();
		}
	}
}