function isEmpty(id,div,label){
	var eid = document.getElementById(id);
	if(eid.value.length==0){
		document.getElementById(div).innerHTML=label+"不能為空";
		return false;
	}
	document.getElementById(div).innerHTML="";
	return true;
}
function isNumber(id,div,label){
	var patern =/^[0-9,]*$/;
	var val = document.getElementById(id).value;
	if(val.length!=0){
		if(!patern.test(val)){
			document.getElementById(div).innerHTML=label+"只能是整數";
			return false;
		}else{
			document.getElementById(div).innerHTML="";
			return true;
		}
	}else{
		document.getElementById(div).innerHTML=label+"不能為空";
		return false;
	}
}
function isPrice(id,div,label){
	var patern =/^\d+(\.\d+)?$/;
	if(!patern.exec(document.getElementById(id).value)){
		document.getElementById(id).value="0.0";
		document.getElementById(div).innerHTML=label+"不能為空且只能是數字";
		return false;
	}
	document.getElementById(div).innerHTML="";
	return true;
}

function onSubmitCheck(){
	var b1=isEmpty('leaveTime','leaveTimeDiv','出發日期')
	var b2=isEmpty('fightName','fightNameDiv','航空公司');
	var b3=isEmpty('fightNo','fightNoDiv','航班號');
	var b4=isEmpty('leaveCity','leaveCityDiv','出發城市');
	var b5=isEmpty('arriveCity','arriveCityDiv','到達城市');
	var b6=isEmpty('leaveTime','leaveTimeDiv','起飛時間');
	var b7=isEmpty('arriveTime','arriveTimeDiv','到達時間');
	var b8=isNumber('specialNum','specialNumDiv','特價艙票數');
	var b9=isNumber('economicNum','economicNumDiv','經濟艙票數');
	var b10=isNumber('businessNum','businessNumDiv','公務艙票數');
	var b11=isNumber('headNum','businessNumDiv','頭等艙票數');
	var b12=isPrice('price','priceDiv','原價');
	var b13=isPrice('fuelRate','fuelRateDiv','燃油費');
	var b14=isPrice('buildRate','buildRateDiv','機建費');
	if(b1&&b2&&b3&&b4&&b5&&b6&&b7&&b8&&b9&&b10&&b11&&b12&&b13&&b14){
		return true;
	}
	return false;
}