JSONP Request/Response Functions

jsonp.js

var jsonp = function () {
    return {
        // JSONP Request
        request: function (src, callback) {
            try {
                var self = this,
                    script = null;

                if (document.getElementById('jsonp') !== null) {
                    script = document.getElementById('jsonp');
                    body.removeChild(script);
                }
                script = document.createElement('script');
                script.type = 'text/javascript';
                script.id = 'jsonp';
                script.src = src;
                script.onload = function () {
                    if ((this.readyState === 'complete' || typeof this.readyState === 'undefined') && typeof callback !== 'undefined') callback(self.responseObject);
                }
                script.onreadystatechange = function () {
                    if (typeof callback !== 'undefined') callback(self.responseObject);
                }
                body.appendChild(script);
            } catch (exception) {
                error.logError(exception);
            }
        },

        // JSONP Response
        response: function (response) {
            try {
                if (typeof response.error === 'undefined') {
                    this.responseObject = response;
                } else {
                    handleError(response.error);
                }
            } catch (exception) {
                error.logError(exception);
            }
        }
    }
} ();