var myLatlng = new google.maps.LatLng(36.846663, 139.957735);
    var myOptions = {
      zoom: 16,
      center: myLatlng,
      scrollwheel: false,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
  function initialize() {
    var map = new google.maps.Map(document.getElementById("map_in"), myOptions);
  }

  function initialize_pop() {
    var map = new google.maps.Map(document.getElementById("pop_map"), myOptions);
  }