t;</pre>

<P>
In the examples above, the About dialog command does not require any parameters, so the
serialization is merely its command id: <tt>org.eclipse.ui.help.aboutAction</tt>.
Below is another example showing a command with a parameter.  Note the command id is
followed by the parameter id and value in parentheses:
</P>

<pre>&lt;a href='javascript:executeCommand(
	"org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.ui.preferencePages.Views)")'&gt;
	Show a preference page&lt;/a&gt;</pre>
