From fa3df2db6fc61e8fbf6080b002412aad402ee65a Mon Sep 17 00:00:00 2001
From: Emily Eisenberg <emily@khanacademy.org>
Date: Tue, 26 Aug 2014 14:50:38 -0700
Subject: [PATCH] Make permalink button work in IE8.

IE8 doesn't have addEventListener, so use attachEvent if that doesn't exist.

Auditors: alpert
---
 static/main.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/static/main.js b/static/main.js
index bf497edf..d4c0dd9f 100644
--- a/static/main.js
+++ b/static/main.js
@@ -9,9 +9,15 @@ function init() {
         input.attachEvent("onkeyup", reprocess);
     }
 
-    permalink.addEventListener("click", function() {
-        window.location.search = "?text=" + encodeURIComponent(input.value);
-    });
+    if ("addEventListener" in permalink) {
+        permalink.addEventListener("click", function() {
+            window.location.search = "?text=" + encodeURIComponent(input.value);
+        });
+    } else {
+        permalink.attachEvent("click", function() {
+            window.location.search = "?text=" + encodeURIComponent(input.value);
+        });
+    }
 
     var match = (/(?:^\?|&)text=([^&]+)/).exec(window.location.search);
     if (match) {