function messageHandler(event) { console.log ("messageHandler :: " + event.data); if( event.data == "action=pause") { SendMessage("PauseController", "OnPause", ""); } if( event.data == "action=resume" ) { SendMessage("PauseController", "OnUnpause", ""); } } if (window.addEventListener) { addEventListener("message", messageHandler, false); } else { attachEvent("onmessage", messageHandler); }