Returns a reference to the window object generated by the iframe element. Through the window object, you can access the document object and then any one of the document's elements. For Netscape 6, use the contentDocument property to jump from iframe element object to its content. If you are trying to reach script variables or functions in the frame, the contentWindow (or W3C DOM-friendly and Netscape 6-compatible contentDocument.defaultView) provides access to the script context.