errt

    if mb = 1 and mx > 119 and my > 75 and mx < 907 and my < 650 then
       if current_tool = "spray" then   
        mousewhere (mx, my, mb)
    if mb = 1 then
        loop        
        Draw.Dot (Rand.Int(mx-10, mx+10), Rand.Int(my-10, my +10), col)
             mb := 0
             exit when mb = 0
         end loop   
             end if