[OpenLayers-Users] Problem with the 'donut' example

[gbrun]

Hi list!

In my GeoExt application, I try to insert a polygon draw control, which  
allows drawing holes in previous drawn polygons.

To achieve, I inspired by the following example:  
http://openlayers.org/dev/examples/donut.html

Unfortunately, it doesn't work. First, I tried in a complex application,  
and then alone inside a GeoExt MapPanel. I saw in the example that there  
are some specific things to configure: renderer, update sektechs, etc. Are  
they important in this example?

Regards,

Geoffrey