1 files changed, 21 insertions, 3 deletions

diff --git a/web/src/js/utils.js b/web/src/js/utils.js
index e53097f8..782618c2 100644
--- a/web/src/js/utils.js
+++ b/web/src/js/utils.js
@@ -29,14 +29,32 @@ var Key = {
     LEFT: 37,
     RIGHT: 39,
     ENTER: 13,
-    ESC: 27
+    ESC: 27,
+    TAB: 9,
+    SPACE: 32,
+    J: 74,
+    K: 75,
+    H: 72,
+    L: 76
 };
 
-var formatSize = function (size) {
+var formatSize = function (bytes) {
+    var size = bytes;
     var prefix = ["B", "KB", "MB", "GB", "TB"];
     while (size >= 1024 && prefix.length > 1) {
         prefix.shift();
         size = size / 1024;
     }
-    return (Math.floor(size * 100) / 100.0) + prefix.shift();
+    return (Math.floor(size * 100) / 100.0).toFixed(2) + prefix.shift();
+};
+
+var formatTimeDelta = function (milliseconds) {
+    var time = milliseconds;
+    var prefix = ["ms", "s", "m", "h"];
+    var div = [1000, 60, 60];
+    while (time >= div[0] && prefix.length > 1) {
+        prefix.shift();
+        time = time / div.shift();
+    }
+    return Math.round(time) + prefix.shift();
 };
\ No newline at end of file