diff --git a/chosen/chosen.proto.js b/chosen/chosen.proto.js
index 11e66d8..16225f4 100644
--- a/chosen/chosen.proto.js
+++ b/chosen/chosen.proto.js
@@ -134,7 +134,7 @@
           document.observe("click", this.click_test_action);
           this.results_show();
         } else if (!this.is_multiple && evt && (evt.target === this.selected_item || evt.target.up("a.chzn-single"))) {
-          this.results_show();
+          this.results_toggle();
         }
         return this.activate_field();
       } else {
@@ -275,6 +275,13 @@
       }
       return this.result_highlight = null;
     };
+    Chosen.prototype.results_toggle = function() {
+      if (this.results_showing) {
+        return this.results_hide();
+      } else {
+        return this.results_show();
+      }
+    };
     Chosen.prototype.results_show = function() {
       var dd_top;
       if (!this.is_multiple) {
@@ -752,4 +759,4 @@
     return parser.parsed;
   };
   root.OptionsParser = OptionsParser;
-}).call(this);
+}).call(this);
\ No newline at end of file