HTML5 chessboard

<script type="text/javascript" src=""></script>
<script type="text/javascript">
$(document).ready(function () {
	// draws a chessboard
	function drawChessboard() {
		// define the constants
		var baseX = 0.5, baseY = 0.5, width = 50;
		// get the 2D context from the "chessboard" canvas
		var context = document.getElementById("chessboardCanvas").getContext("2d");

		// draws the 8 by 8 chessboard
		for (var i = 0; i < 8; i++) {
			for (var j = 0; j < 8; j++) {
				var x = baseX + width * i, y = baseY + width * j;

				// draw the rectangle
				context.strokeRect(x, y, width, width);

				// fill the odd number rectangles
				if ((i + j) % 2 != 0) {
					context.fillRect(x, y, width, width);
<canvas id="chessboardCanvas" width="401" height="401" class="block"/>


Cloud adds new statement to Manifesto for Agile Software Development

The cloud is not only a new way to more easily and cheaply get the computing power needed to do what companies and individuals are doing today…
This may be the most important benefit of the cloud—it enables companies of all sizes and in all sectors, as well as governments, non-profits, and individuals, to more quickly build new applications and services –

Cloud is agility and efficiency of computing. Agile team should be in the cloud.

It means that you should do your job completely in the cloud whenever possible. Developing, Testing, Presenting, e.t.c.

BTW: Manifesto for Agile Software Development

node.js Allow access only for logged in users

The reference to isLoggedIn in the route is an connect route middleware. Control is passed to the middleware function before the route function is called. Use isLoggedIn to verify that we have a user token in the session before we send the client the requested route.
If we do not have a user token in the session, then we redirect the client to the ‘/login’ route. This effectively locks down our routes from unauthenticated access.

function isLoggedIn(req, res, next) {
      res.writeHead(301, {"Location":'/login'});
app.get('/mails', isLoggedIn, function(req, res, next){
app.get('/docs', isLoggedIn, function(req, res, next){