function changeToNumeric(nowField){
	tmpValue = document.getElementById(nowField).value;
	tmpValue = tmpValue.replace(/[^0-9]/ig,"");
	document.getElementById(nowField).value=tmpValue;
}

function changeToPhone(nowField){
	tmpValue = document.getElementById(nowField).value;
	tmpValue = tmpValue.replace(/[^0-9]/ig,"");
	if ((tmpValue.substr(0,3)=="000")||(tmpValue.substr(0,3)=="555")) tmpValue = "";
	document.getElementById(nowField).value=tmpValue;
}