[Users] Tooltip problem with GeoExt.Action

[gbrun]

Hi everybody!

I've got a quite strange bug in my GeoExt application. I'm trying to  
display a tooltip on hovering a GeoExt Action button but the tooltip  
doesn't appear! Here is a code sample:

	etendue_max = new GeoExt.Action({
		iconCls: 'worldIcon',
		//text: 'zoom',
		control: new OpenLayers.Control.ZoomToMaxExtent(),
		map: map,
		tooltip: 'Zoom to full extent'
	});

	mapPanel = new GeoExt.MapPanel({
		map: map,
		...........
		tbar: [etendue_max]

	});

Does someone have any idea?

Geoffrey


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