function filluserdata( name , email , cell , personal_id , addr , city , phone){
        document.getElementById('name').value                    = name;
        document.getElementById('email').value                    = email;
        document.getElementById('cellphone').value                = cell;
        document.getElementById('personal_id').value            = personal_id;
        document.getElementById('address').value                = addr;
        document.getElementById('addr_city').value                = city;
        document.getElementById('phone').value                     = phone;
    }
    
    // 收貨人同購買人
    function fillinvoicedata(){
        document.getElementById('userorder_invoice_addr').value = document.getElementById('userdata_address').value;
        document.getElementById('userorder_invoice_addr_city').value = document.getElementById('userdata_addr_city').value
    }
    
    function check_buy_transcation() {
        if(document.getElementById('name').value=='') {
            alert('請輸入購買人姓名');
            return false;
        }else if(document.getElementById('personal_id').value=='') {
            alert('請輸入身份証字號');
            return false;
        }else if(document.getElementById('email').value=='') {
            alert('請輸入email');
            return false;
        }else if(document.getElementById('cellphone').value=='') {
            alert('輸入聯絡用手機');
            return false;
        }else if(document.getElementById('userorder_invoice_addr').value=='') {
            alert('輸入發票寄送地址');
            return false;
        }else if(document.getElementById('law_rule_agree').checked != true) {
            alert('請詳閱生活智庫法律顧問平台服務購買需知後勾選同意');
            return false;
        }else{
            if(document.getElementById('invoice_type_3page').checked == true) {
                 if( (document.getElementById('userorder_invoice_no').value=='') || (document.getElementById('userorder_invoice_title').value=='') || (document.getElementById('userorder_invoice_addr_city').value=='') || (document.getElementById('userorder_invoice_addr').value=='') ) {
                     alert('請輸入統編、發票抬頭和發票寄送地址');
                     return false;
                 }    
                 return true;
            }
            return true;
        }        
    }