Anton fon Faust

{
  "post": {
      "en" : {
          "post" : "Post",
          "news" : "News"
        },
      "ru" : {
          "post" : "Посты",
          "news" : "Новости"
        }
    },
    "menu": {
      "en" : {
          "post" : "menu1",
          "news" : "menu2"
       },
      "ru" : {
          "post" : "меню1",
          "news" : "меню2"
       }
    }
}

var lang = "ru"; // захардкодил, для простоты

$.get({
    url: "lang.json",
    dataType: "json",
    success: function(data) {
        $(".lang").each(function(entry){
            var $el = $(this);
            var text = data[$el.attr("key")][lang];
            $el.text(text);
        });
    }
})

document.addEventListener('touchmove', function (event) {
  if (event.scale !== 1) { event.preventDefault(); }
}, false);

.contentimg div .text {
min-height: 300px;
}

$('a[href="#contact_form_pop"]').on('click', function(e){
$('#contact_form_pop input').first().val(e.target.parent().parent().find('h4.modal-title').first().text())
})