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How do attributes get their values?

As we saw above, attribute values may be set during initialisation. There are two other important ways to change them. One is by interaction with the user. When the user submits a form or clicks on an imagemap, the data will be sent to the server, which will split it up and route each value to the appropriate instance. In general, this will change the instance's display and/or value attributes, as defined in the run-time library.

Attributes can also be updated by code-inserts, described in Section 2.10.

Jocelyn Ireson-Paine
Fri May 30 14:03:06 BST 1997