diff --git a/4chan_x.coffee b/4chan_x.coffee
index 893004177..c19b5617e 100644
--- a/4chan_x.coffee
+++ b/4chan_x.coffee
@@ -463,7 +463,7 @@ keydown = (e) ->
     kc = e.keyCode
     #https://developer.mozilla.org/en/DOM/Event/UIEvent/KeyEvent
     # [0-9;=A-Z]
-    unless 48 <= kc <= 90
+    unless (48 <= kc <= 90)
         g.keyCode = -1
     else if e.ctrlKey or e.altKey
         g.keyCode = -1
@@ -1067,8 +1067,8 @@ else #not reply
         for el in arr
             span = n 'span',
                 className: 'navlinks'
-                id: 'p' + _i
-            if _i
+                id: 'p' + _l
+            if _l
                 textContent = '▲'
                 href = "#p#{_i - 1}"
             else if g.PAGENUM
@@ -1081,7 +1081,7 @@ else #not reply
                 className: 'pointer'
                 textContent: textContent
                 href: href
-            if _i < l1
+            if _l < l1
                 textContent = '▼'
                 href = "#p#{_i + 1}"
             else
diff --git a/4chan_x.js b/4chan_x.js
index f32e922e9..2e58db375 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -603,7 +603,7 @@
   keydown = function(e) {
     var kc;
     kc = e.keyCode;
-    if (48 <= kc && kc > 90) {
+    if (!(48 <= kc && kc <= 90)) {
       return g.keyCode = -1;
     } else if (e.ctrlKey || e.altKey) {
       return g.keyCode = -1;
@@ -1360,9 +1360,9 @@
         el = arr[_l];
         span = n('span', {
           className: 'navlinks',
-          id: 'p' + _i
+          id: 'p' + _l
         });
-        if (_i) {
+        if (_l) {
           textContent = '▲';
           href = "#p" + (_i - 1);
         } else if (g.PAGENUM) {
@@ -1377,7 +1377,7 @@
           textContent: textContent,
           href: href
         });
-        if (_i < l1) {
+        if (_l < l1) {
           textContent = '▼';
           href = "#p" + (_i + 1);
         } else {