jQuery(document).ready(
  function($)
  {
    $('#tab-my').click(submenu_cal);
    $('#tab-all').click(submenu_cal);
    
    function submenu_cal()
    {
      $('#subcal-my').slideToggle();
      $('#subcal-all').slideToggle();
      
      var $this = $(this);
      var another_id = $this.attr("id").replace("tab-", "")=="my"?"all":"my";
      var $another = $('#tab-' + another_id);
      if($this.hasClass("active"))
      {
        $this.removeClass("active");
        $another.addClass("active");
      }
      else
      {
        $this.addClass("active");
        $another.removeClass("active");
      }
    }
  }
);