倒计时bug fix

@@ -50,26 +50,27 @@ function downCount(item) {
             _minute = _second * 60,
             _hour = _minute * 60,
             _day = _hour * 24,
-            days,
             hours,
             minutes,
             seconds;
 
         // calculate dates
-        days = Math.floor(difference / _day),
-            hours = Math.floor((difference % _day) / _hour),
-            minutes = Math.floor((difference % _hour) / _minute),
-            seconds = Math.floor((difference % _minute) / _second);
+        hours = Math.floor((difference % _day) / _hour),
+        minutes = Math.floor((difference % _hour) / _minute),
+        seconds = Math.floor((difference % _minute) / _second);
 
         // fix dates so that it will show two digets
-        days = (String(days).length >= 2) ? days : '0' + days;
         hours = (String(hours).length >= 2) ? hours : '0' + hours;
         minutes = (String(minutes).length >= 2) ? minutes : '0' + minutes;
         seconds = (String(seconds).length >= 2) ? seconds : '0' + seconds;
 
         // set to DOM
         item.removeClass('hide');
-        hoursItem.text('剩余' + hours + ':' + minutes + ':' + seconds);
+        if (hours === '00') {
+            hoursItem.text('剩余' + minutes + ':' + seconds);
+        } else {
+            hoursItem.text('剩余' + hours + ':' + minutes + ':' + seconds);
+        }
 
         difference -= 1000;