$(document).ready( function() {
  
$(".accordion-trigger").click( function(e) {

  var pane = "#" + $(this).attr("rel");

  var visible = $(pane).css("display");
   
  if (visible == "none")
    $(pane).slideDown();
  else
    $(pane).slideUp();

  $(".accordion-pane").not($(pane)).slideUp();
  e.preventDefault();

});


});