<!-- Website  check -->
function Catelog_add()
{	
	
	var n = document.add;		
	
	if (!n.C1_Name.value)
       		{
       			alert('請輸入主類別名稱!!');	
			n.C1_Name.focus();
			return false;
		}
	
	return true;
}
function Catelog2_add()
{	
	
	var n = document.add;		
	
	if (!n.C2_Name.value)
       		{
       			alert('請輸入分類別名稱!!');	
			n.C2_Name.focus();
			return false;
		}
	
	return true;
}
<!--Faq  add check(新增檢查) -->
function Faq_add()
{	
	var n = document.add; 
	
	if (!n.TEL.value)
       		{
       			alert('Please  enter the  TEL!!');	
			n.TEL.focus();
			return false;
		}
		
	if (!n.Contact.value)
       		{
       			alert('Please  enter the Contact Person !!');	
			n.Contact.focus();
			return false;
		}
	if (!n.Email.value)
       		{
       			alert('Please  enter the Email!!');	
			n.Email.focus();
			return false;
		}
	if (!n.Inquiry1.checked && !n.Inquiry2.checked && !n.Inquiry3.checked && !n.Inquiry4.checked && !n.Inquiry5.checked )
       		{
       			alert('Please  Choose Inquiry Subject at least one!!');	
			n.Inquiry1.focus();
			return false;
		}		
	if (!n.text11.value)
       		{
       			alert('Please  enter the Code!!');	
			n.text11.focus();
			return false;
		}
	return true;
}
<!--Faq  add check(新增檢查) -->
function Faq_Cadd()
{	
	var n = document.add; 
	
	if (!n.TEL.value)
       		{
       			alert('請輸入公司電話!!');	
			n.TEL.focus();
			return false;
		}
		
	if (!n.Contact.value)
       		{
       			alert('請輸入聯絡人 !!');	
			n.Contact.focus();
			return false;
		}
	if (!n.Email.value)
       		{
       			alert('請輸入Email!!');	
			n.Email.focus();
			return false;
		}
	if (!n.Inquiry1.checked && !n.Inquiry2.checked && !n.Inquiry3.checked && !n.Inquiry4.checked && !n.Inquiry5.checked )
       		{
       			alert('請勾選洽詢主旨!!');	
			n.Inquiry1.focus();
			return false;
		}		
	if (!n.text11.value)
       		{
       			alert('請輸入驗證碼!!');	
			n.text11.focus();
			return false;
		}
	return true;
}