def tvBrowserHazard_selection_changed(self):
        """Update layer description label."""
        (is_compatible, desc) = self.get_layer_description_from_browser(
            'hazard')
        self.lblDescribeBrowserHazLayer.setText(desc)
        self.lblDescribeBrowserHazLayer.setEnabled(is_compatible)
        self.parent.pbnNext.setEnabled(is_compatible)
Update layer description label.