Making onclose event fired by ws.close() asynchronous.

Patch by kanaka.
http://github.com/gimite/web-socket-js/issues#issue/35

web_socket.js

@@ -117,16 +117,21 @@
   };
 
   WebSocket.prototype.close = function() {
-    if (!this.__flash) return;
-    this.readyState = this.__flash.getReadyState();
-    if (this.readyState != WebSocket.OPEN) return;
-    this.__flash.close();
+    var self = this;
+    if (!self.__flash) return;
+    self.readyState = self.__flash.getReadyState();
+    if (self.readyState != WebSocket.OPEN) return;
+    self.__flash.close();
     // Sets/calls them manually here because Flash WebSocketConnection.close cannot fire events
     // which causes weird error:
     // > You are trying to call recursively into the Flash Player which is not allowed.
-    this.readyState = WebSocket.CLOSED;
-    if (this.__timer) clearInterval(this.__timer);
-    if (this.onclose) this.onclose();
+    self.readyState = WebSocket.CLOSED;
+    if (self.__timer) clearInterval(self.__timer);
+    if (self.onclose) {
+       // Make it asynchronous so that it looks more like an actual
+       // close event
+       setTimeout(self.onclose, 1);
+     }
   };
 
   /**