		issueNextPing: function() {
			var self = this;
			if (this.socketPingTimeout) {
				clearTimeout(this.socketPingTimeout);
			}
			this.socketPingTimeout = setTimeout(function() {
				self.socketPingTimeout = 0;
				if (self.socket) {
					self.socket.send(JSON.stringify({
						type: 'ping'
					}));
					self.issueNextPing();
				}
			}, SOCKET_PING_TIMEOUT);
		},