Added zeroPad method in javascript

code/html/custom.js

@@ -43,6 +43,10 @@ function valueSet(data, name, value) {
     data.push({'name': name, 'value': value});
 }
 
+function zeroPad(number, positions) {
+    return ("0".repeat(positions) + number).slice(-positions);
+}
+
 function doUpdate() {
 
     var form = $("#formSave");
@@ -539,7 +543,7 @@ function processData(data) {
             var minutes = uptime % 60; uptime = parseInt(uptime / 60);
             var hours   = uptime % 24; uptime = parseInt(uptime / 24);
             var days    = uptime;
-            data[key] = days + 'd ' + ("00" + hours).slice(-2) + 'h ' + ("00" + minutes).slice(-2) + 'm ' + ("00" + seconds).slice(-2) + 's';
+            data[key] = days + 'd ' + zeroPad(hours, 2) + 'h ' + zeroPad(minutes, 2) + 'm ' + zeroPad(seconds, 2) + 's';
         }
 
         if (key == "useWhite") {