$(document).ready(function(){
  // screen size
  if ( screen.width < 960 ) {
    var lang = navigator.browserLanguage || navigator.language || navigator.userLanguage;
    console.log(lang);
    if (lang =~ /^ja/ ) {
      location.href = '/smartj';
    } else {
      location.href = '/smart';
    }
  }

  // 高さを揃える
  var main_h = $("section").height();
  var side_h = $("#sidebar").height();
  if ( main_h > side_h ) {
    $("#sidebar").height(main_h);
  } else {
    $("section").height(side_h);
  }
});