function check(){
	if (!vIsCoincidentLengthB(trim(usrform1.yhm.value), 1, 20)){
		alert("Please input Username and length 1 to 20!");
		usrform1.yhm.focus();
		return false;
	}
	if (!vIsCoincidentLengthB(trim(usrform1.mm.value), 1, 20)){
		alert("Please input Password and length 1 to 20!");
		usrform1.mm.focus();
		return false;
	}
	if (document.usrform1.mm.value != document.usrform1.mm1.value){
		alert("Then password not same!");
		usrform1.mm1.focus();
		return false;
	}
	if (!vIsCoincidentLengthB(trim(usrform1.mmtswt.value), 1, 30)){
		alert("Please input Password Question and length 1 to 30!");
		usrform1.mmtswt.focus();
		return false;
	}
	if (!vIsCoincidentLengthB(trim(usrform1.mmtsda.value), 1, 30)){
		alert("Please input Password Answer and length 1 to 30!");
		usrform1.mmtsda.focus();
		return false;
	}
	if (!vIsCoincidentLengthB(trim(usrform1.xm.value), 1, 12)){
		alert("Please input Truename and length 1 to 12!");
		usrform1.xm.focus();
		return false;
	}
	if (!vIsEmail(trim(usrform1.dzyj.value)) || (document.usrform1.dzyj.value == "")){
		alert ("Please input effectual email!");
		usrform1.dzyj.focus();
		return false;
	}
	if (!vIsPhone(trim(usrform1.lxdh.value)) || (document.usrform1.lxdh.value == "")){
		alert("Please input effectual tel!");
		usrform1.lxdh.focus();
		return false;
	}
	if (!vIsCoincidentLengthB(trim(usrform1.txdz.value), 1, 40)){
		alert("Please input address and length 1 to 40!");
		usrform1.txdz.focus();
		return false;
	}
	if (document.usrform1.yb.value.length <6 || !vIsNumeric(usrform1.yb.value)){
		alert("Please input effectual Post Num!");
		usrform1.yb.focus();
		return false;
	}
	return true;
}