jquery frame pages manipulate elements in the top-level form, or elements in other frames pages

Source: Internet
Author: User

(1) var DLs = top.$ ("#leftFrame"). Contents (). Find ("DL");

Top is an instance of the window class that represents the top-level form

All jquery objects can be viewed as attributes of the Windsow object.

Because a variable is defined in JS, such as var AVar = 1, it is equivalent to adding a property to the Window object.

The object that you just defined can be accessed through Windows.avar.

top.$ ("#leftFrame") used to find an IFRAME with ID leftframe in the top-level form.

$ ("#leftFrame"). Contents () is all elements of an IFRAME with ID leftframe in the top-level form

(2) top.$ ("#subNav a"). Get (INDEX_DL). Click ();

By (1) top.$ ("#subNav a") can get the elements of the top-level page

Note: Native JS code (the page in the IFRAME gets the other IFRAME page elements)

top.frames[' mainFrame '].document.getelementbyid ("AID"). Value

jquery frame pages manipulate elements in the top-level form, or elements in other frames pages

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