Unbinding an event from an element

1 files changed, 4 insertions, 4 deletions

diff --git a/src/event.js b/src/event.js
index d2222bf..a2bb3f0 100644
--- a/src/event.js
+++ b/src/event.js
@@ -20,11 +20,11 @@
   /* add event to SVG.Element */
   SVG.Element.prototype[event] = function(f) {
     var self = this;
-
+    
     /* bind event to element rather than element node */
-    this.node['on' + event] = function() {
-      return f.apply(self, arguments);
-    };
+    this.node['on' + event] = typeof f == 'function'
+      ? function() { return f.apply(self, arguments); }
+      : null;
     
     return this;
   };