Select an item from a selectOneRadio component

[Edwin Mercado]

Maybe a simple question, but how do I select an item from within a
selectOneRadio component?
This is what I have:

        <h:selectOneRadio 
                binding="#{treeBacker.radioButtonEvidences}"
                immediate="true"
                onclick="submit()"
                valueChangeListener="#{treeBacker.updateNodeEvidence}">
                <f:selectItems binding="#{treeBacker.evidencesSelectItems}" 
                value="#{treeBacker.defaultEvidences}"/>
    </h:selectOneRadio>
...
 private HtmlSelectOneRadio   radioButtonEvidences        = new
HtmlSelectOneRadio();
....
defaultEvidences value:

     public SelectEvidencesArray() {
         super();
         add(new SelectItem("0%"));  
         add(new SelectItem("20%"));  
         add(new SelectItem("40%"));  
         add(new SelectItem("60%"));  
         add(new SelectItem("80%"));  
         add(new SelectItem("100%"));  
     }


from within my valueChangeListener updateNodeEvidence, is it possible
for me to select one of this 6 items (maybe using
radioButtonEvidences)?

thanks in advance.
Edwin