From def8adca7cc66aa4f47a694bdc5bd6f1ee15026e Mon Sep 17 00:00:00 2001
From: Igor Vaynberg <igor.vaynberg@gmail.com>
Date: Mon, 3 Jun 2013 11:19:00 -0700
Subject: [PATCH] cleaner way to detect older IE

---
 select2.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/select2.js b/select2.js
index 8ead520e..67d31ed3 100644
--- a/select2.js
+++ b/select2.js
@@ -1233,8 +1233,9 @@ the specific language governing permissions and limitations under the Apache Lic
                 });
             }
 
-            // ie requires an iframe shim to cover controls like selects
-            if($.browser.msie) {
+            // IE requires an iframe shim to cover controls like selects
+            if($.support.opacity) {
+                // a hack to detect older IE browsers - they do not support opacity
                 undermask=$("#select2-drop-undermask");
                 if (undermask.length==0) {
                     undermask = $(document.createElement("iframe"));