Code
onclick="screentosphere(mouse.x, mouse.y, toh, tov);DoCopy(*toh,*tov);DoConfirm();"
...
<action name="DoConfirm">
layer[copy_coordinates].html = 'COPIED TO CLIPBOARD';
delayedcall(2, layer[copy_coordinates].html = 'Click on the red dot below to get the coordinate value.');
</action>
something like that?
Tuur