Think of methods as verbs. You'll find a list of methods at Netscape's JavaScript reference page . The JavaScript object model comprises all the elements that make up a Web page. Your web page document is an object. Any table, form, button, image, or link on your page is also a object.
Objects are typically nouns.
For example, window, document, and image are all JavaScript objects. For example, length, name, and target are all JavaScript properties. In JavaScript, an object's properties are defined by using the object's name, a period, and the property name. Furthermore, an object can contain other objects. Check out Netscape's JavaScript reference page for a list of available properties.