Piotr Zalewa

Just incredible thing - Javascript Shell.

Click here to open the Jash console and access the Javascript on that page.

Write there

alert('hello world');

And hit [Enter]. Alert window pops up

You may access whole Javascript code defined on the page. In example

$ID('header').hide();

Hides the header. The code written above uses the XhochY Prototype version which is installed on this blog.

The other way to use Jash is to write CSS which is placed at the end of included css files, making it more prominent than others.

Take a look at the Jash Documentation to find out more

I am impressed!