DATA URI scheme

This is a good-to-know piece of web development. Images, HTML, data objects can be rendered with a single URI.
The Hello world example of the URI data scheme is:

// copy this to the address bar
data:text/html;charset=utf-8,
hello world

data:[][;charset=""][;base64],

• Reduce HTTP requests
• Create crazy things, like: this and this.
• Useful for bookmarklets
• Generate images on the fly
• CSS also supports it

Tabbed CSS only website template

Did you know what a small anchor link can do for you? More, than you might think. You can turn it into an advanced navigation on your website. There is nothing new in this, it was designed to do this. This only make sense, if the scrollbars are visible in your browser, isn't it? Well, no. Anchor links even work, when the invisible content is in an overflow: hidden container. The target element should have the same ID as the anchor link's href attribute.

Show content

   Very very long text... images... forms... btw my over flow is hidden...
   

       I'm invisible by default, 
       but your click just revealed me. :)
   

Category: Programming - Tags: css template free tabs - 11

Konami codes in javascript

If you ever played any platform, fighting or combat games like Contra or Mortal Combat, then you will be familiar with the special key combinations for executions or special attacks that gives you some extra power, effect, or god mode. The Konami code was one of the fist cheat code in the video gaming history, that special combination later adapted by many games.

In the age of websites, many sites also installed small easter eggs for their visitors, just for fun. See the list here.

I played a little with implementing it, and just a few rows were enough to achieve the desired effect.

var p = 0;
var order = [38,38,40,40,37,39,37,39,66,65];
document.onkeyup = function(e)
{
	var key = (window.event) ? event.keyCode : e.keyCode;
	p = (order[p] == key) ? ++p : 0;
	if( p == order.length ) alert('Boom, secrets unlocked');
};