Connect timeout (fixes #34)

Try different transports upon connect timeout (fixes #35)

lib/socket.js

@@ -24,6 +24,8 @@
 					timeout: 25000
 				}
 			},
+			connectTimeout: 5000,
+			tryTransportsOnConnectTimeout: true,
 			rememberTransport: true
 		};
 		for (var i in options) 
@@ -36,9 +38,9 @@
 		if (!this.transport && 'console' in window) console.error('No transport available');
 	};
 
-	Socket.prototype.getTransport = function(){
-		var transports = this.options.transports, match;
-		if (this.options.rememberTransport){
+	Socket.prototype.getTransport = function(override){
+		var transports = override || this.options.transports, match;
+		if (this.options.rememberTransport && !override){
 			match = this.options.document.cookie.match('(?:^|;)\\s*socketio=([^;]*)');
 			if (match) transports = [decodeURIComponent(match[1])];
 		} 
@@ -57,6 +59,25 @@
 			if (this.connecting) this.disconnect();
 			this.connecting = true;
 			this.transport.connect();
+			if (this.options.connectTimeout){
+				var self = this;
+				setTimeout(function(){
+					if (!self.connected){
+						self.disconnect();
+						if (self.options.tryTransportsOnConnectTimeout){
+							var remainingTransports = [], transports = this.options.transports;
+							for (var i = 0, transport; transport = transports[i]; i++){
+								if (transport == self.transport.type) return;
+								remainingTransports.push(transport);
+							}
+							if (remainingTransports.length){
+								self.transport = self.getTransport(remainingTransports);
+								self.connect();
+							}
+						}
+					}
+				}, this.options.connectTimeout)
+			}
 		}
 		return this;
 	};