Nick's fix.

eth/eth.js

@@ -23,6 +23,7 @@ var eth = (function ethScope() {
 		m_reqId++
 		var request = new XMLHttpRequest();	
 		request.open("POST", "http://localhost:8080", false);
+		console.log("Sending " + JSON.stringify(req))
 		request.send(JSON.stringify(req));
 		return JSON.parse(request.responseText).result;
 	}
@@ -59,18 +60,21 @@ var eth = (function ethScope() {
 		ret[m] = function() { return reqSync(m, getParams(arguments)) }
 	})(spec[si]);
 
-	ret.check = function() {
-		if (!m_watching)
+	ret.check = function(force) {
+		if (!force && isEmpty(m_watching))
 			return
 		var watching = [];
 		for (var w in m_watching)
 			watching.push(w)
 		console.log("Checking " + JSON.stringify(watching));
-		var changed = reqSync("check", watching);
+		var changed = reqSync("check", { "a": watching } );
 		console.log("Got " + JSON.stringify(changed));
 		for (var c in changed)
 			m_watching[c]()
-		setTimeout(this.check, 5000)
+		console.log("Setting timeout");
+		var that = this;
+		setTimeout(function() { that.check() }, 5000)
+		console.log("OK");
 	}
 
 	ret.watch = function(a, fx, f) {
@@ -84,7 +88,9 @@ var eth = (function ethScope() {
 			this.check()
 	}
 	ret.unwatch = function(f, fx) {
+		console.log(JSON.stringify(m_watching) + " " + (m_watching == {}))
 		delete m_watching[fx ? f + fx : f];
+		console.log(JSON.stringify(m_watching) + " " + (m_watching == {}))
 	}
 	ret.newBlock = function(f) {
 		console.log(JSON.stringify(m_watching) + " " + (m_watching == {}))

eth/main.cpp

@@ -351,6 +351,7 @@ int main(int argc, char** argv)
 					iss >> g_logVerbosity;
 				cout << "Verbosity: " << g_logVerbosity << endl;
 			}
+#if ETH_JSONRPC
 			else if (cmd == "jsonport")
 			{
 				if (iss.peek() != -1)
@@ -371,6 +372,7 @@ int main(int argc, char** argv)
 					jsonrpcServer->StopListening();
 				jsonrpcServer.reset();
 			}
+#endif
 			else if (cmd == "address")
 			{
 				cout << "Current address:" << endl;
@@ -443,8 +445,10 @@ int main(int argc, char** argv)
 			else
 				cout << "Unrecognised command. Type 'help' for help in interactive mode." << endl;
 		}
+#if ETH_JSONRPC
 		if (jsonrpcServer.get())
 			jsonrpcServer->StopListening();
+#endif
 	}
 	else
 	{