Sure. Bind "disabled" attribute to model and re-render h:inputText using a4j:commandLink

this sample I've just written for another topic with toogle state changes. It should be also usefull for you.


page

 <h:form>
 <h:panelGrid columns="3" width="100%" columnClasses="tpanels,tpanels,tpanels">
 <rich:simpleTogglePanel switchType="ajax" label="Ajax Switch Type" height="90px" opened="#{userBean.opened}" id="ajax">
 This type allows to perform the partial view update instead of the
 whole page reloading. You also can reRender other components
 while the panel content is toggled.
 </rich:simpleTogglePanel>
 </h:panelGrid>
 <a4j:commandButton reRender="ajax" action="#{userBean.switchPanel}"></a4j:commandButton>
 </h:form>

 public boolean isOpened() {
 return opened;
 }

 public void setOpened(boolean opened) {
 this.opened = opened;
 }

 public void switchPanel() {
 setOpened(!isOpened());
 }