The clue is in the name - what would be the point in personal ids if more than one person had the same id, whereas the are loads of different people that are upperclass.

The clue is in the name - what would be the point in personal ids if more than one person had the same id, whereas the are loads of different people that are upperclass.
Using ID's more than once will display properly, but it isn't valid when you check the html.
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