diff --git a/layouts/shortcodes/on-off.html b/layouts/shortcodes/on-off.html
index 5f3e2b9..a42a820 100644
--- a/layouts/shortcodes/on-off.html
+++ b/layouts/shortcodes/on-off.html
@@ -16,23 +16,16 @@
       <img id={{ $id }} src="{{ $img_off }}" alt="Off">
     {{ end }}
     <script language="JavaScript">
-
-      function imgping(id,url){
-        while (true) {
-          function Sleep(milliseconds) {
-            return new Promise(resolve => setTimeout(resolve, milliseconds));
-          }
+        function exec(){
           var imgping = new Image();
-          imgping.src = url;
+          imgping.src = {{ $opt1 }};
           if(imgping.height>0){
-            document.getElementById(id).outerHTML ='<img src="{{ $img_on }}" alt="On">';
+            document.getElementById({{ $id }}).outerHTML ='<img src="{{ $img_on }}" alt="On">';
           } else {
-            document.getElementById(id).outerHTML ='<img src="{{ $img_off }}" alt="Off">';
+            document.getElementById({{ $id }}).outerHTML ='<img src="{{ $img_off }}" alt="Off">';
           }
-          Sleep(15000);
         }
-      }
-      imgping({{ $id }},{{ $opt1 }});
+        exec();
     </script>
   {{ else }}
     imgping [URL to image] [default on/off]