Post site address using node.js and selenium webdriver

posturl.js

var http = require('http');

var request = http.request({
		method: "POST",
		host: "localhost",
		port: 4444,
		path: "/wd/hub/session/1335895401910/url",
		headers: {
			'content-type': 'application/json',
			'charset': 'charset=UTF-8'
		}
	}, function(response)
	{
		response.setEncoding('utf8');

		var data = "";
		response.on('data', function(chunk) { data += chunk });

		response.on("end",
			function()
			{
			  console.log(data.replace(/,/gi, ",\n").substring(0,500));
			}
		);
	}
);

request.write(JSON.stringify({url: "http://www.yandex.ru"}));

request.end();