NAME
    UnlockLayers -- Unlock all layers from graphics output.
                    Restart graphics output to layers that have been
                    waiting
SYNOPSIS
    UnlockLayers( li )
                  a0
    void UnlockLayers( struct layer_info *);
FUNCTION
    Make all layers in this layer list unlocked.
    Then call unlocklayerinfo
INPUTS
    li - pointer to the layer_info structure
BUGS
SEE ALSO
    locklayers, unlocklayer, graphics/layers.h