Struts treats action result as json, ajax pulls the result as a string then
parses it as json object.

-Problem: action 'getClientInfo' is being called twice. once without
passing the selected user name as a parameter, and once with passing it.
The first time the action is called is used to update the text fields,
but all parameters are set as null.

-The action is verified as working by hard coding parameters to action.