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Is $(document.body) and document.body the same? Cleaning garbage and binding in class? - MooTools 1.3
this.css = null;

window.addEvent('domready', function(){

    this.document = $(document);
    this.body = $(document.body);
    this.head = $(document.head);

}.bind(this));

this.css = null; // Maybe this.css = '' - empty string?

window.addEvent() // or should I use $(window).addEvent()
this.document = $(document) // or this.document = document
this.body = $(document.body) // or this.body = document.body

(function(){
  this.setStyle('overflow-y', 'visible');
 }.bind(this.body)).delay(100);

(function(){
  this.body.setStyle('overflow-y', 'visible');
 }.bind(this)).delay(100);

myElement.destroy();

window.addEvent(); // is fine.
document.body.adopt(new Element("div")); // not fine in IE.
new Element("div").inject(document.body); // fine.

$(document.body).adopt(new Element("div")); // fine.
document.body.adopt(new Element("span")); // now fine, after first $.

(function(){
      this.setStyle('background', 'blue');
 }).delay(100, $("foo"));

(function(){
      this.element.setStyle('background', 'blue');
      this.someMethod();
 }).delay(100, this));