diff --git a/index.html b/index.html
index 6254db3..629e259 100644
--- a/index.html
+++ b/index.html
@@ -8,7 +8,7 @@
 <script type="text/javascript" src="js/player.js?2"></script>
 <script type="text/javascript" src="js/staticfuncs.js?2"></script>
 <script type="text/javascript" src="js/classes.js?2"></script>
-<script type="text/javascript" src="js/app.js?3"></script>
+<script type="text/javascript" src="js/app.js?4"></script>
 <script type="text/javascript" src="js/ox.extra.js"></script>
 <script type="text/javascript" src="js/dnd.js"></script>
 <script type="text/javascript" src="js/error.js?2"></script>
diff --git a/js/app.js b/js/app.js
index a1b7d9f..8071070 100644
--- a/js/app.js
+++ b/js/app.js
@@ -45,6 +45,7 @@ Ox.load({
                 return false;
             }
         }
+        var seekTime = parseFloat($('#seekTime').val());
         if (navigator.platform == 'MacIntel') {
             //Ctrl - Seek Back
             if (e.keyCode == 17) {
@@ -56,12 +57,12 @@ Ox.load({
             }
         } else {
             //PageUp - seek back
-            if (e.keyCode == 33) {
+            if (e.keyCode == 33 && !e.shiftKey) {
                 seek(-seekTime)
             }
 
             // PageDown - seek fwd.
-            if (e.keyCode == 34) {
+            if (e.keyCode == 34 && !e.shiftKey) {
                 seek(seekTime)
             }
         }
@@ -331,7 +332,6 @@ function loadVideo(videoFile) {
 };
 
 function seek(delta) {
-    var seekTime = parseFloat($('#seekTime').val());
     var currTime = Video.get();
     var newTime = currTime + delta;
     Video.set(newTime);