$(document).ready(function(){

  initBackstretch = function() {
    if ($('h1').hasClass('active') == false) {
      $.backstretch("landing_assets/img/landing_bg_1.jpg", {speed: 750})
    } else {
      $.backstretch("landing_assets/img/landing_bg_2.jpg", {speed: 750})
    }
  };

  initScosche = function() {
    $('h1').toggleClass('active');
    $('nav > a').toggleClass('selected');
    $('#select_bar').toggleClass('down');
    initBackstretch();
  };

  if ((navigator.userAgent.match(/like Mac OS X/i)) && ($(window).width() <= 480)) {
    $('body').addClass('iphone');
  } else {
    initBackstretch();
    setInterval(initScosche, 5500);
  }
 

});