From 92c763057e948c75bc21a0965b3392d81d49c43d Mon Sep 17 00:00:00 2001
From: Ben Cooling <office@bcooling.com.au>
Date: Wed, 26 Jun 2013 12:33:37 +1000
Subject: [PATCH] Added basic support for deltaY and deltaX values for ie8,
 bringing it inline with ie9

---
 jquery.mousewheel.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/jquery.mousewheel.js b/jquery.mousewheel.js
index 9d65c7162..0dcaeaff1 100755
--- a/jquery.mousewheel.js
+++ b/jquery.mousewheel.js
@@ -108,6 +108,14 @@
         deltaX = Math[fn](deltaX / lowestDeltaXY);
         deltaY = Math[fn](deltaY / lowestDeltaXY);
 
+        // <=ie9 (fix for ie8)
+        try { 
+          event.originalEvent.hasOwnProperty('wheelDelta') 
+        }
+        catch(e) {
+          deltaY = deltaX = delta;
+        }
+
         // Add event and delta to the front of the arguments
         args.unshift(event, delta, deltaX, deltaY);