$(function(){

  $('.bxslider').bxSlider({
    auto: true,
    mode: 'fade'
  });

  /**
   * DOWNLOAD BUTTON
   */
  // $.getJSON("https://api.github.com/repos/stevenwanderski/bxslider-4/tags").done(function(json){
  //   $('.download a').attr('href', json[0].zipball_url);
  // });

  /**
   * QUICK REFERENCE
   */

  // check if the window bindings should be applied (only if the element is present)
  var $reference = $('.reference-wrap');
  if($reference.length > 0){

    // toggle the menu
    $('.reference-wrap h3').click(function() {
      $('.reference-content').slideToggle(300);
    });

    // scroll to the elements
    $('.reference-content a').click(function(){
      $('.reference-content').slideToggle(300);
      var id = $(this).html();
      $('html, body').animate({
        scrollTop: $('#' + id).offset().top - 20
      }, 300);
      return false;
    });

    $(window).bind('scroll resize', positionQuickReference);
  }

  // check if .reference-wrap should be sticky
  function positionQuickReference(){
    var windowTop = $(window).scrollTop();
    if(windowTop >= 112){
      $reference.css({
        position: 'fixed',
        top: 20,
        right: $(window).width() > 700 ? $(window).width() - ($('#primary h1').offset().left + $('#primary').width()) : 20
      });
    }else{
      $reference.css({
        position: 'absolute',
        top: 0,
        right: $(window).width() > 1040 ? 0 : 20
      });
    }
  }

  /**
   * SIDEBAR
   */

  $('.btn-donate').click(function() {
    $('#frm-paypal').submit();
    return false;
  });

  $('.block-signup form').submit(function() {
    var email = $('#mce-EMAIL').val();
    if(!isValidEmailAddress(email)){
      $('.block-signup .error').show();
      return false;
    }
  });

});

function isValidEmailAddress(emailAddress) {
  var pattern = new RegExp(/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i);
  return pattern.test(emailAddress);
};

/**
 * Create a cookie
 */
function createCookie(name, value, days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
    var expires = "; expires=" + date.toGMTString();
  }
  else var expires = "";
  document.cookie = name + "=" + value + expires + "; path=/";
}

/**
 * Get a cookie
 */
function getCookie(c_name) {
  if (document.cookie.length > 0) {
    c_start = document.cookie.indexOf(c_name + "=");
    if (c_start != -1) {
      c_start = c_start + c_name.length + 1;
      c_end = document.cookie.indexOf(";", c_start);
      if (c_end == -1) {
        c_end = document.cookie.length;
      }
      return unescape(document.cookie.substring(c_start, c_end));
    }
  }
  return "";
}