Trying to improve ASP.NET MVC Unobtrusive validation with localization

gistfile1.js

    <script>
        $(document).ready(function () {
            //Ask ASP.NET what culture we prefer, because we stuck it in a meta tag
            var data = $("meta[name='accept-language']").attr("content")

            //Tell jQuery to figure it out also on the client side.
            $.global.preferCulture(data);

            //Tell the validator, for example,
            // that we want numbers parsed a certain way!
            $.validator.methods.number = function (value, element) {
                if ($.global.parseFloat(value)) {
                    return true;
                }
                return false;
            }

            //Fix the range to use globalized methods
            jQuery.extend(jQuery.validator.methods, {
                range: function (value, element, param) {
                    //Use the Globalization plugin to parse the value
                    var val = $.global.parseFloat(value);
                    return this.optional(element) || (val >= param[0] && val <= param[1]);
                }
            });

            //Setup datepickers if we don't support it natively!
            if (!Modernizr.inputtypes.date) {
                if ($.global.culture.name != 'en-us' && $.global.culture.name != 'en') {

                    var datepickerScriptFile = "/Scripts/globdatepicker/jquery.ui.datepicker-" + $.global.culture.name + ".js";
                    //Now, load the date picker support for this language 
                    // and set the defaults for a localized calendar
                    $.getScript(datepickerScriptFile, function () {
                        $.datepicker.setDefaults($.datepicker.regional[$.global.culture.name]);
                    });
                }
                $("input[type='datetime']").datepicker();
            }

        });
    </script>