Q:

Jgrowl like notification using dojo

Is there anything in Dojo like the jquery jgrowl.

A:

There exists dojox.widget.Toaster. (Test-File & API Documentation)
You need to create a new channel with the Toaster, for example.
var errors = new dojox.widget.Toaster({
    messageTopic: '/app/error',
    positionDirection: 'br-up',
    duration: 5000
});

After this you can publish with dojo.publish to the channel /app/error
dojo.publish('/app/error', ["Error sending data"]);

Don't forget to load the Toaster CSS dojox/widget/Toaster/Toaster.css
If you want it black, you need to change the CSS. I created an example with two Toasters, one displays new messages in the right upper corner, the other in the right bottom corner. And i made them black.
JS Fiddle

