var getToken = function (username, password, vault) {
	
		// Request an encrypted token with the login information.
		$.ajax({
			url: "http://example.org/REST/server/authenticationtokens.aspx",
			type: "POST",
			dataType: "json",
			contentType: "application/json",
			data: JSON.stringify({ Username: username, Password: password, VaultGuid: vault }),
			success: processToken
		});
	};
	
	var processToken = function (token) {
		// Set the header.
		$.ajaxSetup({ headers: { "X-Authentication" : token.Value } });
	};