<div class="container"> 
 <div id="seat-map"> 
 <div class="front">01车</div> 
 </div> 
 <div class="booking-details"> 
 <h3> 选座信息：</h3> 
 <ul id="selected-seats"></ul> 
 <p>票数: <span id="counter"></span></p> 
 <p>总计: ￥<span id="total">0</span></p> 
  
 <button class="checkout-button">确定购买</button> 
 <div id="legend"></div> 
 </div> 
</div> 

map: [ //座位图 
 'ff__ff', 
 'ff__ff', 
 '______', 
 'eee_ee', 
 'eee_ee', 
 'eee_ee', 
 'eee_ee', 
 'eee_ee', 
 'eee_ee' 
], 

seats: { //定义座位属性 
 f: { 
 price : 100, 
 classes : 'first-class', 
 category: '一等座' 
 }, 
 e: { 
 price : 40, 
 classes : 'economy-class', 
 category: '二等座' 
 }  
}, 

naming : { //定义行列等信息 
 top : true, 
 columns: ['A', 'B', 'C', '', 'D','F'], 
 rows: ['01','02','','03','04','05','06','07','08','09'], 
 getLabel : function (character, row, column) { 
 return row+column; 
 } 
}, 

legend : { //定义图例 
 node : $('#legend'), 
 items : [ 
 [ 'f', 'available', '一等座' ], 
 [ 'e', 'available', '二等座'], 
 [ 'f', 'unavailable', '已售出'] 
 ]  
}, 

click: function () { 
 if (this.status() == 'available') {//可选座 
 $('<li>'+this.data().category+'<br/>01车'+this.settings.label+'号<br/>￥'+this.data().price+'</li>') 
 .attr('id', 'cart-item-'+this.settings.id) 
 .data('seatId', this.settings.id) 
 .appendTo($cart); 
 //更新票数 
 $counter.text(sc.find('selected').length+1); 
 //计算总计金额 
 $total.text(recalculateTotal(sc)+this.data().price); 
 return 'selected'; 
 } else if (this.status() == 'selected') {//已选中 
 $counter.text(sc.find('selected').length-1); 
 $total.text(recalculateTotal(sc)-this.data().price); 
 //删除已预订座位 
 $('#cart-item-'+this.settings.id).remove(); 
 return 'available'; 
 } else if (this.status() == 'unavailable') {//已售出 
 //已售出 
 return 'unavailable'; 
 } else { 
 return this.style(); 
 } 
}, 

sc.get(['01_A', '04_A', '07_B', '07_F']).status('unavailable'); 

setInterval(function() { 
 $.ajax({ 
 type : 'get', 
 url : 'book.php', 
 dataType : 'json', 
 success : function(response) { 
 //遍历所有座位 
 $.each(response.bookings, function(index, booking) { 
 //将已售出的座位状态设置为已售出 
 sc.status(booking.seat_id, 'unavailable'); 
 }); 
 } 
 }); 
}, 10000); //每10秒