hix pay lettime bug

@@ -39,6 +39,14 @@ const online = (req, res, next) => {
             return next();
         }
 
+        if (order.pay_lefttime) {
+            order.pay_lefttime = +order.pay_lefttime - 3600;
+
+            if (order.pay_lefttime < 0) {
+                order.pay_lefttime = 0;
+            }
+        }
+
         order.payment_type = parseInt(order.payment_type, 10);
 
         if (amount <= 0 || order.payment_type === 2) {

@@ -11,6 +11,7 @@ var $btnby = $('input.btnby'),
     $formGo = $('.form-go'),
     Alert = dialog.Alert,
     time = $('.js-time').data('time'),
+    timeInterval,
     $timer = $('.js-timer'),
     C_ID;
 
@@ -61,7 +62,7 @@ payPage = {
         });
 
         this.setTimer();
-        setInterval(function() {
+        timeInterval = setInterval(function() {
             self.setTimer();
         }, 1000);
     },
@@ -139,10 +140,14 @@ payPage = {
         });
     },
     setTimer: function() {
-        var hour = Math.floor(time / 3600);
-        var minus = Math.floor((time % 3600) / 60);
-        var second = time % 60;
-        var text = '';
+        if (time < 0) {
+            return clearInterval(timeInterval);
+        }
+
+        let hour = Math.floor(time / 3600);
+        let minus = Math.floor((time % 3600) / 60);
+        let second = time % 60;
+        let text = '';
 
         if (hour > 0) {
             text += hour + '小时';