Internal frame allow one window to be displayed within another window. Adding of internal frame can be used to the desktop pane or the content pane. The user interface allows choosing the base of the application that is surrounded around the frames. The frames can be switched and other frames can be chosen over the other one. This internal frame has the same function that is provided in the normal Frame object, this object is confined inside the visible area of the container. The internal frame can have icons that can be used inside the application frame and have the properties of maximize and minimize so that the frame consists of main application frame. It closes the frame using the standard controls that is given for a popup window. Internal frame can be given in a layer that uses the display function to display the relative to the other internal frames.