IN THIS CHAPTER
Accessing arrays of objects contained by the document object
Writing new document content to a window or frame
Using the body element for IE window measurements
document object and its components. Understanding the scope of the
document object within each of the object models you support is key to implementing successful cross-browser applications.
document object's place within the original object hierarchy. Figure 18-1 shows that the
document object is a pivotal point for a large percentage of objects. In the W3C DOM, the
document object plays an even more important role as the container of all element objects delivered with the page: The
document object is the root of the entire document tree.
In fact, the
document object and all that it contains is so big that I have divided its discussion into many chapters, each focusing on related object groups. This chapter looks at the
document object and
body object (which have conceptual relationships), whereas each of the succeeding chapters in this part of the book details objects contained by the
Figure 18-1. The basic document object model hierarchy.
Compatibility: WinIE3+, MacIE3+, NN2+, Moz+, ...