//JQuery Module Pattern

// An object literal
var app = {
    init: function() {
      app.functionOne();
    },
    functionOne: function () {
    }
  };

  function pcsh1() {
    var x = document.getElementById("filter--section");
      x.classList.toggle("filterWrapper_open");
  }

  function pcsh2() {
    var x = document.getElementById("filter--section");
    if (x.classList.contains("filterWrapper_open")) //
        x.classList.toggle("filterWrapper_open");
  }