/*
 * Converts JSON data received from the server to flat array of values.
 */
function jsonToValuesArray(jsonData) {
  errMsgs =[];
  for (var key in jsonData) {
  	var values = jsonData[key];
		$.each(values, function(idx, val) {
		  errMsgs.push(val);
		});
  }
  return errMsgs;
}

/*
 * Calls callback function on AJAX success (because built-in functions don't
 * work!)
 */
$.fn.onAjaxComplete = function (cb) {
	$(this)
	.on("ajax:success", function() {
	  cb();
	})
	.on("ajax:error", function() {
	  cb();
	});
}