// JavaScript Document

function validate(theForm)
{
	var errMsg = "";
	
	if ( isEmpty(theForm.price.value) )
		errMsg += "- 請填上貨品金額\n";
	else if ( !isFloatNumber(theForm.price.value) )
		errMsg += "- 貨品金額不是正數\n";

	if ( isEmpty(theForm.postfee.value) )
		errMsg += "- 請填上寄港郵費\n";
	else if ( !isFloatNumber(theForm.postfee.value) || theForm.postfee.value <= 0　)
		errMsg += "- 寄港郵費不是正數 (如不清楚, 請聯絡本公司: bidinone@gmail.com)\n";
		

	if ( isEmpty(errMsg) )
		return true;
	else
	{
		alert("請修改以下問題:\n" + errMsg);
		return false;
	}
}

function clearValues()
{
	document.getElementById("price").value = "";
	document.getElementById("postfee").value = "";
}