on_punch = function(pos, node, puncher, pointed_thing)
			
		local rmeta = puncher:get_meta():get_string("skypos")
  
			--local spos = minetest.string_to_pos(puncher:get_meta():get_string("skypos"))
  
		local spos = minetest.string_to_pos(postr)
				
			--if rmeta == "" then return end; 
		
			--local gpos = puncher:get_pos({x=pos.x,y=pos.y,z=pos.z})
		
		local npos = puncher:set_pos({spos})