fix missing existence check

themes/infinity-hugo/static/js/main.js

@@ -33,17 +33,20 @@ $(document).ready(function(){
     $hour = $('#countdown_dashboard').data('hour');
     $minute = $('#countdown_dashboard').data('minute');
     $second = $('#countdown_dashboard').data('second');
-    $('#countdown_dashboard').countDown({
+
-        targetDate: {
+    if ($('#countdown_dashboard').length > 0) {
-            'day':      $day,
+        $('#countdown_dashboard').countDown({
-            'month':    $month,
+            targetDate: {
-            'year':     $year,
+                'day':      $day,
-            'hour':     $hour,
+                'month':    $month,
-            'min':      $minute,
+                'year':     $year,
-            'sec':      $second,
+                'hour':     $hour,
-        },
+                'min':      $minute,
-        omitWeeks: true
+                'sec':      $second,
-    });
+            },
+            omitWeeks: true
+        });
+    }
 
     $(".about-slider").owlCarousel(
         {