November 7, 1999 - Window References
November 7, 1999 Window References Tips: November 1999
Yehuda Shiran, Ph.D.
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window
object. The window
object of a child frame is actually a property of the parent's window
object.
The self
property retrieves a reference to the current window or frame. The parent
property retrieves the parent of the window in the object hierarchy. Finally, the top
property retrieves the topmost ancestor window, which is its own parent. In other words, if self
is equal to self.parent
, then the current window doesn't have a parent, meaning it is the topmost window. In this case, self
is also equal to self.top
. The following diagram illustrates the usage of these window references:
Note that recursive references are possible. For example, window.window.window
evaluates to window
, which is also equivalent to self.self.self
.