var nextFunction = null;
	var chromeCallback = null;

	if (messageEvent.data.target != "cackey") {
		return;
	}

	if (!GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("START MESSAGE");
		console.log(messageEvent.data);
		console.log("END MESSAGE");
	}

	/*
	 * If we failed for some reason and we have a certificate in the original
	 * request then forget any PIN associated with that certificate
	 */
	if (messageEvent.data.status != "success") {
		if (messageEvent.data.originalrequest.certificate) {
			delete cackeyCertificateToPINMap[cackeyCertificateToPINID(messageEvent.data.originalrequest.certificate)];
		}
	}

	if (messageEvent.data.id == null) {
		return;
	}

	chromeCallback = cackeyOutstandingCallbacks[messageEvent.data.id];

	if (chromeCallback == null) {
		console.error("[cackey] Discarding outdated message");

		return;
	}

	switch (messageEvent.data.status) {
		case "error":
			console.error("[cackey] Failed to execute command '" + messageEvent.data.command + "': " + messageEvent.data.error);

			}, function(pinWindow) {
				/*
				 * Set the PIN value to blank
				 */
				pinWindowPINValue = "";

				if (!pinWindow) {
					console.error("[cackey] No window was provided for PIN entry, this will not go well.");

					return;
				}

				pinWindowPreviousHandle = pinWindow;

				pinWindow.drawAttention();

					for (messageIdx = 0; messageIdx < cackeyMessagesToRetry.length; messageIdx++) {
						var tmpMessageEvent;

						tmpMessageEvent = cackeyMessagesToRetry[messageIdx];

						if (pinWindowPINValue == "") {
							if (!GoogleSmartCard.IS_DEBUG_BUILD) {
								console.log("[cackey] The PIN dialog was closed without gathering a PIN, treating it as a failure.");
							}

							tmpMessageEvent.data.status = "error";
							tmpMessageEvent.data.error = "PIN window closed without a PIN being provided";

							cackeyMessageIncoming(tmpMessageEvent);
						} else {
							tmpMessageEvent.data.originalrequest.pin = pinWindowPINValue;

/*
 * Handler for messages from Chrome related to listing certificates
 */
function cackeyListCertificates(chromeCallback) {
	var callbackId;

	if (!GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Asked to provide a list of certificates -- throwing that request over to the NaCl side... ");
	}

	callbackId = cackeyOutstandingCallbackCounter + 1;

	cackeyHandle.postMessage(
		{
			'target': "cackey",
			'command': "listcertificates",
			'id': callbackId
		}
	);

	cackeyOutstandingCallbackCounter = callbackId;
	cackeyOutstandingCallbacks[callbackId] = chromeCallback;

	if (!GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Thrown.");
	}

	return;
}

/*
 * Handler for messages from Chrome related to signing a hash of some sort
 */

	digest = new Uint8Array(digestHeader.length + signRequest.digest.byteLength);
	digest.set(digestHeader, 0);
	digest.set(new Uint8Array(signRequest.digest), digestHeader.length);

	delete digestHeader;

	if (!GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Asked to sign a message -- throwing that request over to the NaCl side... ");
	}

	callbackId = cackeyOutstandingCallbackCounter + 1;

	command = {
		'target': "cackey",
		'command': "sign",
		'id': callbackId,

	}

	cackeyHandle.postMessage(command);

	cackeyOutstandingCallbackCounter = callbackId;
	cackeyOutstandingCallbacks[callbackId] = chromeCallback;

	if (!GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Thrown.");
	}

	return;
}

/*
 * Finish performing initialization that must wait until we have loaded the CACKey module
 */

		}
	);

	/*
	 * Start the Google PCSC Interface
	 */
	new GoogleSmartCard.PcscNacl(cackeyHandle);


	return;
}

/*
 * Initialize CACKey and the PCSC library from Google
 */