Make variable global

How can I make my alert work? Right now it is undefined and I need to make my function in the variable global. Can this be done?

if (json_goals === undefined)
	ajax.get('/assets/ajax/user_goals.php', function (resp)
		var json_goals = resp;
		return json_goals;

The callback function runs later on from a global scope, so the return won’t do anything useful.

Try replacing the return with the alert instead.