Demonstration of HTML-based interactors manipulating a SVG document. Please check the details and/or view source if you are curious about the interns and/or feasibility of this approach.
One common issue with SVG deployement is that many implementations have no user interface for internal navigation (zoom, pan and rotation). In addition, among the ones that do (Opera, ASV and SVG Web, as of this writing), the behavior and interaction (shortcut keys, context menu entries) aren't consistent.
Aside from the proposal to implement a stand-alone SVG holding interactor widgets (which was already demonstrated), one may want use the interactors within an separate environment: that's where this example kicks in and shows how simple it is to provide a (X)HTML+SVG solution for this caveat.