styleSheet Properties   DHTML Object Properties

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Retrieves whether the rule or stylesheet is defined on the page.

HTML	N/A
Script	[ bReadOnly = ] object.readOnly

false	The rule or stylesheet is obtained through a LINK object or the @import rule.
true	The rule or stylesheet is defined on the page.

The property is read-only with a default value of false.

stylesheets obtained through a LINK object or the @import rule cannot be modified while in edit mode. For more information on editing, see MSHTML Editing.

styleSheet, rule