gistfile1.js

(function() {
	var CDB = function(url, callback) {
		if(url != 'undefined' && callback != 'undefined') {
			this._url = url;
			this._callback = callback;
			this.send(this._url, this._callback);
		}
	};
				
	CDB.prototype = {
		send: function(url, callback) {
			var scpt = document.createElement('script'),
			    uri = url + '?callback=' + this._callback;
			scpt.setAttribute('src', uri);
			document.body.appendChild(scpt);
		}
	};
				
	someTest = function(something) {
		alert(something);
	}
				
	var test = new CDB('__SOME_URL_TO_SOME_JSON__', 'someTest');
})();