Fix bug #814.

diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js
index 98f792a..87fe73b 100644 (file)
--- a/src/ajax/ajax.js
+++ b/src/ajax/ajax.js
@@ -55,7 +55,7 @@ jQuery.fn.extend({
                // If the second parameter was provided
                if ( params )
                        // If it's a function
-                       if ( jQuery.isFunction( params.constructor ) ) {
+                       if ( jQuery.isFunction( params ) ) {
                                // We assume that it's the callback
                                callback = params;
                                params = null;