function checkData(form){
	with(form){
		Department = elements["department"].value;
		if ( null == Department || 0 == Department.length ){
			alert("請填寫 單位系所 ");
			elements["department"].focus();
			return false;
		}

		Tel = elements["tel"].value;
		if ( null == Tel || 0 == Tel.length ){
			alert("請填寫 聯絡電話 ");
			elements["tel"].focus();
			return false;
		}
		
		eMail = elements["email"].value;
		if ( null == eMail || 0 == eMail.length || -1 ==eMail.indexOf("@")){
			alert("請填寫 電子郵件 ");
			elements["email"].focus();
			return false;
		}
		
		Body = elements["body"].value;
		if ( null == Body || 0 == Body.length ){
			alert("請填寫 客戶留言 ");
			elements["body"].focus();
			return false;
		}
	}
	return true;
}