JSF 2.0 AJAX, calling method from commandButton

Question

I am trying to make an ajax call to a method in a backing bean when I click on a command button. In reality the method will persist or update my entity, but in this sample it will just compare a user and password and set a boolean. In the sample I would like to have the commandButton call "doLogin". Or add a second second commandButton that just calls the method by its self. TIA
This is the form
        <h:form>
            <h:panelGroup id="edit2" >
                <h:inputText id="editInput" value="#{StringHolder.str}" />
                <br/>
                <h:inputSecret id="inputPasswd" value="#{StringHolder.password}" />
                <br/>
                <h:outputText id="editOutput" value="#{StringHolder.str}" /><br/>
                <h:selectBooleanCheckbox id="inOrNot" value="#{StringHolder.loggedIn}"/><br/>
                <h:commandButton value="Submit" id="submit">
                    <f:ajax execute="editInput inputPasswd" render="editOutput inOrNot"/>
                </h:commandButton><br/>
            </h:panelGroup>
        </h:form>This is the backing bean:
@ManagedBean(name="StringHolder")
@SessionScoped
public class StringHolder {
    private String str;
    private String password;
    private boolean loggedIn;
    /** Creates a new instance of StringHolder */
    public StringHolder() {
     * @return the str
    public String getStr() {
        return str;
     * @param str the str to set
    public void setStr(String str) {
        this.str = str;
     * @return the password
    public String getPassword() {
        return password;
     * @param password the password to set
    public void setPassword(String password) {
        this.password = password;
     * @return the loggedIn
    public boolean isLoggedIn() {
        return loggedIn;
    public void doLogin() {
        if(str.equals("user") && password.equals("password")){
            loggedIn = true;
        } else {
            loggedIn = false;
}

Answer 1

Ok, I figured it out.
                <h:commandButton value="Submit" id="submit" actionListener="#{StringHolder.doLogin}">
                    <f:ajax execute="editInput inputPasswd" render="editOutput inOrNot"/>
                </h:commandButton><br/>