Problem with rich:inputNumberSpinner not setting value

[cobar]

I am having problems with the inputNumberSpinner not setting the bound value,  value="#{spinBean.fromDtl.ch1}",  when it changes or when the a4j:commandButton is fired. The component does not have the value either: getFromCh1UI().getValue().toString() = 0

Any help with what I am doing wrong is greatly appreciated.

{code}

<rich:inputNumberSpinner id="reqFromCh1" tabindex="11" inputSize="2"
             minValue="#{spinBean.fromDtl.ch1Min}"
             maxValue="#{spinBean.fromDtl.ch1Max}"
             inputClass="fieldInput" style="width:20px;"
             disabled="#{spinBean.fromDtl.ch1Disabled}"
             binding="#{spinBean.fromCh1UI}"
             value="#{spinBean.fromDtl.ch1}"/>

    private UIInputNumberSpinner fromCh1UI;

    public UIInputNumberSpinner getFromCh1UI() {
        return fromCh1UI;
    }

    public void setFromCh1UI(UIInputNumberSpinner fromCh1UI) {
        this.fromCh1UI = fromCh1UI;
    }

{code}

Side note: I have a selectOneMenu field that when changed updates the minValue, maxValue, disabled and value attributes correctly. There are actually ch1-ch5 input spinners.

[cobar]

Upon futher investigation the culprit is the support I used to set the min/max and enable the correct number of spinners which there are 5. The value is actually set on the a4j:commandButton action so the spinner must keep track of the number using javaScript and then marshals value on the form submit to the bound value?

{code}

<a4j:support id="fromLvlSprt" action="#{spinnerBean.updateFromSpinners}"
         event="onchange"
         reRender="reqFromCh1, reqFromCh2, reqFromCh3, reqFromCh4, reqFromCh5"/>

{code}