x is a counting variable so as the For loop executes x will be incremented by 1. So what you are saying in the code is:

For x = 1 to Request.Form.Count = Until the value of x is equal to the number of items in Request.Form preform this action:
Response.Write Request.Form.Key(x) = Return the key value from x place inside the collection
Response.Write Request.Form.Item(x) = Return the item (which is the form value) from x place inside the collection
Next = Cause the code to loop

If you place the code snipped i provided on your Submit page you will see how it works. (It will write out all of the form element names and values from the previous page)

Does that make more sense?
-Doug

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