function printObject(obj, prtCallBack) {

	for(var prop in obj) {

		if(prtCallBack == null) { 
			prtCallBack = console.log; 
		}

		var f = obj[prop];
		if (typeof(f) == 'function') {
			prtCallBack(prop + "(): " + f());
		} else {
			prtCallBack(prop + ": " + f.toString());
		}
	}
}