[OpenLayers-Users] opacity slider for base layer

[Andreas Heckwolf]

Hello all,

I would like to add a slider for changing the opacity of the base layer
to my maps. I figured that it would be best to create a new control
based on the OpenLayers.Control.PanZoomBar. I want it to look like the
existing zoom slider. Being new to OL development any
suggestions/opinions and pointers on how to continue would be very much
welcome.

Cheers,

Andreas

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