Simplified jQuery Core

jQCoreSimple.js

var jQuery = (function() {
    // Define a local copy of jQuery
    var jQuery = function( selector, context ) {
        // The jQuery object is actually just the init constructor 'enhanced'
        return new jQuery.fn.init( selector, context );
    },
    // A central reference to the root jQuery(document)
    rootjQuery;
			
    jQuery.fn = jQuery.prototype = {
        constructor: jQuery,
        init: function( selector, context, rootjQuery ) {
	    this.context = this[0] = document.body;
	    this.length = 1;	
	    return this;
	},
		
        // The default length of a jQuery object is 0, and make it act like []
	length: 0,
	splice: [].splice 
    };
	
    // Give the init function the jQuery prototype for later instantiation
    jQuery.fn.init.prototype = jQuery.fn;
    rootjQuery = jQuery(document);	
    return jQuery;
})();