You can do that by simply definig your new mouse maps:

bmap new_mouse_map = <mouse_map2.tga>;

Then change it where I commented in my above code thats says:

//do work here
mouse_map = new_mouse_map;

-raiden

"It doesn't matter if we win or lose, it's how we make the game."
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Links: 3DGS for Dummies