function check2()
{
if (registerw.speciality.value=="1") {
		alert("请选择专业中的子类！");
		registerw.speciality.focus();		
		    return (false);
	}

if (registerw.sengao.value!="") {
	
if (isNaN(registerw.sengao.value)){
		alert("身高只能填数字！");
		registerw.sengao.focus();		
		    return (false);
    }
else document.registerw.submit();

}


else
		 document.registerw.submit();
}