Extending jQuery

It's simple to extends jQuery:

<script src="jquery.js"></script>

<div id="satu">Before Extended</div>

<script>

(function($){

    $.fn.myPlugin = function(){

        this.html('<h1>After Extended</h1>');

        this.css('color','blue');

    };

});

$('#satu').myPlugin();

</script>

Output:
After Extended
   

Extending jQuery