function popback(langname)
{
	if (module == null)
	{
			window.open('http://www.ectaco.com/info/pop_back_dw.php3?refid=831&langname=' + langname,'Price','left=200,top=100,width=520,height=500,status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=no');
		}
}