Here's all the properties I know about uCoz's AJAX windows.
Whether content behind the window is dimmed and disabled or not.
Whether the window is closable or not.
Whether the window is maximizable or not.
Whether the window is resizable or not.
Decides if the window is movable or not.
Toggles the shadow of the window.
Determines if there is a header on the window or none.
Automatically sizes the window if the content doesn't fit. It prioritizes resizing the height than the width.
Determines the minimum width and height that a window can have.
Determines the maximum width and height that a window can have.
Determines if the window can be closed by pressing the Esc. key or not.
Determines if the content of the window is reloaded everytime the window has been moved or not.
If you know more properties that I failed to list here, please do tell because I'll be using it to improve my application.