function np(x) {
	switch(x) {
	case 'B14':
		window.open("http://www.eng24.com/learning/xgn/?passeasyeng");
		break;
	case 'B21':
		window.open("http://www.eng24.com/learning/ielts/?passeasyeng");
		break;
	case 'G04':
		window.open("http://passeasy.edu24ol.com/leraning/class_xlzx/");
		break;
	case 'F02':
		window.open("http://passeasy.edu24ol.com/leraning/class_flgw/");
		break;
	}
}