function isEmail(email)
{
	if(email.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
		return true;
	else
		return false;
}

function checkOrderInput0()
{
	if(document.orderForm.name.value=='')
		{
			alert("请填写姓名");
			orderForm.name.focus();
			return false;
		}
		if(document.orderForm.phone.value=='')
		{
			alert("请填写联系电话");
			orderForm.phone.focus();
			return false;
		}
		if(document.orderForm.email.value!='' && !isEmail(document.orderForm.email.value))
		{
			alert("电子邮件格式不符合标准，请重新填写");
			orderForm.email.focus();
			return false;			
		}		
}

function checkOrderInput1()
{
		if(document.orderForm.name.value=='')
		{
			alert("請填寫姓名");
			orderForm.name.focus();
			return false;
		}
		if(document.orderForm.phone.value=='')
		{
			alert("請填寫聯繫电话");
			orderForm.phone.focus();
			return false;
		}
		if(document.orderForm.email.value!='' && !isEmail(document.orderForm.email.value))
		{
			alert("電子郵件格式不符合標準，請重新填寫");
			orderForm.email.focus();
			return false;			
		}
}

function checkOrderInput2()
{
		if(document.orderForm.name.value=='')
		{
			alert("请填写姓名");
			orderForm.name.focus();
			return false;
		}
		if(document.orderForm.phone.value=='')
		{
			alert("请填写联系电话");
			orderForm.phone.focus();
			return false;
		}
		if(document.orderForm.email.value!='' && !isEmail(document.orderForm.email.value))
		{
			alert("电子邮件格式不符合标准，请重新填写");
			orderForm.email.focus();
			return false;			
		}	
}