5. Plug

You can't change value of stasc bond. If you need to change, you have to use stasc plug like Table.ss.xml.

Inside the stasc plug tag, there must be only one element tree. The element tree is another graft and stasc tags inside belong to it. For example, a stasc tag Z in a stasc plug Y which belongs to graft X is referred as X.Y.Z. Z can't belong directly to X because it is gone with Y when Y is replaced.

In case of this air hockey game, title of the game is shown until you click "Start" below the title. Then click() in airhockey.js is called and the title is replaced with Clear.ss.xml, which shows actually nothing as overlay. It shows Score.ss.xml when the puck is in a goal. When the game is over, it shows End.ss.xml. You can play again by clicking "Replay".

Well-mannered and Ill-mannered

I recomend you to use stasc tags in following way:

Use attribute and property to set or get these values.
Use bond to add grafts or to remove added grafts.
Use plug to switch grafts.

Bond and plug are DOM objects. So technically you can do anything what you can do with a DOM object. But plug supposes it has only one child node which is there from the beginning or replaced by using the plug.

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