button.js

var buttonActive = false;
var toggleButton = function(){
  buttonActive = !buttonActive;
  if (buttonActive) {
    $(".nco-alert").show();
    $(".ticketed-alert").hide();
    // $(".unticketed-alert").show();
  } else {
    $("#all-btn").removeClass("active");
    $(".nco-alert").hide();
    $(".ticketed-alert").show();
    // $(".unticketed-alert").hide();
  }
};

$("#ticketed-btn").on("click", toggleButton);

// And anywhere you want whenever you want
toggleButton();