HTMLinputElement.cloneNode(true)

About this test

The clone button try to clone the first input (its name is txt1). After the operation is complete, it renames the new input to txt2 and tries to alert the this.form.txt2 object and the last element inside the form.

It shall always be able to access txt1 because it renames the second input. Also txt2 shall always be reachable.