<!DOCTYPE html>
<html>
    <head>
        <style type="text/css">
            body, html {
                margin: 0;
                padding: 0;
                height: 100%;
                overflow: hidden;
            }

            #content {
                position: absolute;
                left: 0;
                right: 0;
                bottom: 0;
                top: 0px;
            }
        </style>
    </head>
    <body>
        <script>
            var userLang = navigator.language || navigator.userLanguage;
            switch (userLang) {
                case "cs":
                    isrc = "CZ/index.html";
                    break;
                case "sk":
                    isrc = "SK/index.html";
                    break;
                case "hu":
                    isrc = "HU/index.html";
                    break;
                case "pl":
                    isrc = "PL/index.html";
                    break;
                default:
                    isrc = "EN/index.html";
                    break;
            }
            window.onload = function () {
                document.getElementById("ifr").src = isrc;
            };
        </script>
        <div id="content">
            <iframe id="ifr" width="100%" height="100%" frameborder="0" src=""></iframe>
        </div>
    </body>
</html>
