var pane=1;
function switch_pane(new_pane)
{ switch (pane)
  { case 1: $('#home').hide(); break;
    case 2: $('#rates').hide(); break;
    case 3: $('#appointments').hide(); break;
    case 4: $('#aboutus').hide(); break;
  }
  switch(new_pane)
  { case 1: $('#home').show(); break;
    case 2: $('#rates').show(); break;
    case 3: $('#appointments').show(); break;
    case 4: $('#aboutus').show(); break;
  }
  pane = new_pane;
  return false;
}