var oEnum = new Enumerator(col);

where col is any valid JavaScript collection, such as document.forms. Here are the methods that this constructor supports:

Method	Description
moveFirst()	Moves to the first item of the enumerator
moveNext()	Moves to the next item of the enumerator
item()	Returns the current item in the collection
atEnd()	Determines whether the enumerator is at the end of the collection

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