> I had seen that thread but didn't understand the solution - its link
> goes to the 'bool' thing I don't understand.

bool = boolean type of thing
boolean, it can take the values 'true' or 'false' only.

Example of usage
   if ( google.earth.isInstalled( ) )   {   ...do something ... }

>
> Regards
>
> On Dec 18, 8:15 pm, "Barry Hunter" <[email protected]>
> wrote:
>
>
>
> > See
>
> >http://groups.google.com/group/google-earth-browser-plugin/browse_thr...
>
> > 2008/12/18 webewitch <[email protected]>:
>
> > > Convoluted headline but at moment I have a button which says:
>
> > > onclick="map.getEarthInstance(getEarthInstanceCB); map.setMapType
> > > (G_SATELLITE_3D_MAP)"
>
> > > which works fine if the google earth plugin is installed - if it isn't
> > > then the usual procedure occurs of the map giving links to install it.
>
> > > what i'd like is for the button to do the above IF the plugin is
> > > installed but if it isn't then to go to the marker in google maps.
>
> > > I've had a search and not understood the thing about 'bool'.
>
> > > Any help would be much appreciated
>
> > --
> > Barry
>
> > -www.nearby.org.uk-www.geograph.org.uk--Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
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