server.js

var fs = require('fs'),
    sys = require('sys');

fs.readdir('./', function(err, files) {
	if (err) {
	    throw err;
	}
        sys.puts('callback from files ' + files.length);
        return;
	var portNum = 8000;

	for (var i = 0; i < files.length; i++) {
	    var splitName = files[i].split('.');

	    if (splitName.length == 2 &&
		splitName[1] == 'js') {
		
		var module = require('./' + splitName[0]);

		if (module.registerServer != null) {
		    sys.puts(splitName[0] + ' using ' + portNum);
		    module.registerServer(portNum++);
		}
		else {
		    sys.puts(splitName[0] + ' does not contain registerServer!');
		}
	    }
	}
});