MACROMEDIA DREAMWEAVER 8-DREAMWEAVER API Reference page 563

Returns
A Boolean value:
true
otherwise.
dom.canUndo()
Availability
Dreamweaver 3.
Description
Checks whether Dreamweaver can perform an Undo operation.
Arguments
None.
Returns
A Boolean value:
true
dom.hasTracingImage()
Availability
Dreamweaver 3.
Description
Checks whether the document has a tracing image.
Arguments
None.
Returns
A Boolean value:
true
dreamweaver.assetPalette.canEdit()
Availability
Dreamweaver 4.
Description
Enables menu items in the Assets panel for editing.
if the selection is currently being played with a plug-in;
if any steps remain to undo;
if the document has a tracing image;
otherwise.
false
otherwise.
false
false
Enablers 563