define( [

  	"../core",

  	"../var/document",
  	"../core/readyException",

  	"../deferred"

  ], function( jQuery, document ) {
  
  "use strict";

  
  // The deferred used on DOM ready

  var readyList = jQuery.Deferred();

  
  jQuery.fn.ready = function( fn ) {

  
  	readyList
  		.then( fn )
  
  		// Wrap jQuery.readyException in a function so that the lookup
  		// happens at the time of error handling instead of callback
  		// registration.
  		.catch( function( error ) {
  			jQuery.readyException( error );
  		} );

  
  	return this;
  };

  jQuery.extend( {

  	// Is the DOM ready to be used? Set to true once it occurs.
  	isReady: false,
  
  	// A counter to track how many items to wait for before
  	// the ready event fires. See #6781
  	readyWait: 1,
  
  	// Hold (or release) the ready event
  	holdReady: function( hold ) {
  		if ( hold ) {
  			jQuery.readyWait++;
  		} else {
  			jQuery.ready( true );
  		}
  	},
  
  	// Handle when the DOM is ready
  	ready: function( wait ) {
  
  		// Abort if there are pending holds or we're already ready
  		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
  			return;
  		}

  		// Remember that the DOM is ready
  		jQuery.isReady = true;
  
  		// If a normal DOM Ready event fired, decrement, and wait if need be
  		if ( wait !== true && --jQuery.readyWait > 0 ) {
  			return;
  		}
  
  		// If there are functions bound, to execute
  		readyList.resolveWith( document, [ jQuery ] );

  	}

  } );
  
  jQuery.ready.then = readyList.then;

  // The ready event handler and self cleanup method

  function completed() {

  	document.removeEventListener( "DOMContentLoaded", completed );
  	window.removeEventListener( "load", completed );
  	jQuery.ready();

  }

  // Catch cases where $(document).ready() is called
  // after the browser event has already occurred.
  // Support: IE <=9 - 10 only
  // Older IE sometimes signals "interactive" too soon
  if ( document.readyState === "complete" ||
  	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

  	// Handle it asynchronously to allow scripts the opportunity to delay ready
  	window.setTimeout( jQuery.ready );

  } else {

  	// Use the handy event callback
  	document.addEventListener( "DOMContentLoaded", completed );

  	// A fallback to window.onload, that will always work
  	window.addEventListener( "load", completed );
  }

  } );