Programatically hide and show popup in ADF 11g

Programatically hide and show popup in ADF 11g

/**
* Show popup.
*/

import org.apache.myfaces.trinidad.render.ExtendedRenderKitService;
import org.apache.myfaces.trinidad.util.Service;

public static void showPopup(UIComponent pId) {

        String popupId= (String )pId.getClientId(getFacesContext());
        FacesContext context = null;
        ExtendedRenderKitService extRenderKitSrvc = null;
        StringBuilder script = new StringBuilder();
        context = FacesContext.getCurrentInstance();
        extRenderKitSrvc = Service.getRenderKitService(context, ExtendedRenderKitService.class);
        script.append("var popup = AdfPage.PAGE.findComponent('").append(popupId).append("'); ").append("popup.show();");
        extRenderKitSrvc.addScript(context, script.toString());
}

/**
* Hide popup.
*/

public static void hidePopup(UIComponent pId) {
        String popupId= (String )pId.getClientId(getFacesContext());
        FacesContext context = FacesContext.getCurrentInstance();
        ExtendedRenderKitService erkService = Service.getService(context.getRenderKit(),            ExtendedRenderKitService.class);
       erkService.addScript(context,"AdfPage.PAGE.findComponent('" + popupId + "').hide();");
}