javascript: Weather forecast jquery plugin

jquery.fk-forecast.js

/**
 * Weather Forecast Plugin
 * Author: Frederick King
 * 
 **/
(function(window, document, $, undefined) {
    var api = {
        load: function(zip, $elem) {
            var self = this;
            // XDomain Request for IE8/IE9 :(
            if ($.browser.msie && parseInt($.browser.version, 10) >= 8 && window.XDomainRequest) {
                // console.log('Microsoft IE version #' + $.browser.version);
                // Use Microsoft XDR :(
                var xdr = new XDomainRequest();
                xdr.open("get", "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20rss%20where%20url%3D'http%3A%2F%2Fxml.weather.yahoo.com%2Fforecastrss%2F" + zip + "_f.xml'&format=json");
                xdr.onload = function() {
                    json = 'json = ' + xdr.responseText; // the string now looks like..  json = { ... };
                    eval(json); // json is now a regular JSON object
                    self.draw(json.query.results.item.forecast, $elem); // parse using same function as for jQuery's success event
                }
                xdr.send();
            } else {
                $.ajax({
                    url: "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20rss%20where%20url%3D'http%3A%2F%2Fxml.weather.yahoo.com%2Fforecastrss%2F" + zip + "_f.xml'&format=json",
                    dataType: 'json',
                    success: function(data) {
                        self.draw(data.query.results.item.forecast, $elem);
                    }
                });
            }
        },
        draw: function(data, $elem) { /* Iterate through each forecast item */
            $.each(data, function() {
                var data = this,
                    code = data.code,
                    date = data.date,
                    day = data.day,
                    high = data.high,
                    low = data.low,
                    text = data.text,
                    markup = '' + '<div class="weatherItem ' + text + '" >' + '<div class="weatherDay">' + day + '</div>' + '<div class="weatherDate">' + new Date(date).format('MM/dd') + '</div>' + '<div class="weatherImage"></div>' + '<div class="weatherRange">' + '<div class="high" >Hi: ' + high + '</div>' + '<div class="low" >Lo: ' + low + '</div>' + '</div>' + '</div>';
                $elem.append(markup);
            });
        }
    }; /*    jQuery Entry Point */
    $.fn.forecast = function(options) {
        var opts = {},
            $elem = this;
        $.extend(opts, options, {});
        $elem.each(function() {
            var $elem = $(this);
            api.load(opts.zip, $elem);
        });
        return this;
    };
    $(document).ready(function() {
        $('#forecast').forecast({
            'zip': '28215'
        });
    });
})(window, document, jQuery);​

could this be used in something like wallpaper engine and how would you got about it ( also would it be possable to set it for diffrent areas so londen, ny e.g)