Existing Form Elements Table
The "Existing Form Elements" table is a list of each element in your form with a 'name' attribute. The value of every element listed here will be sent to your form processing script in a name=value pair.
Use this table to verify that no name attributes are unintentionally duplicated and to remind yourself which form fields will be sending a value to your script.
Here's the Existing Form Elements table from the example used for the Existing Form Elements menu
Note that Fieldset One and Fieldset Two do not appear as neither has a 'name' attribute and therefore send no data to your script.
Sorting the Table
The table begins sorted alphabetically by the name attribute. Resort the table by clicking on a column heading ("Type", "Label", or "Name") and sort in the opposite direction by clicking the column heading again.