title: how to remove button from time slider of google earth plugin
body: <p>I use "ge.getTime().getControl().setVisibility(ge.VISIBILITY_SHOW); " to display the time slider of google earth plugin.
  In GEP 6 version, the time slider contains sevral buttons, "a zoom out button", "a zoom in button", and another button which can travese a time range in a much faster speed(it has a kind of "play", "pause" function, when you mouseOver it, it says "click to toggle time slider animation"). I want to remove this button from the slider. How can I do that?</p>