/** 
     * Through this method the IDE find out, whether a project is a web module
     * @param project the Project object 
     * @return true if the project is a web module
     */
    public static boolean isWebProject(Project project) {
        if (project == null) {
            return false;
        }
        WebModule wm = WebModule.getWebModule(project.getProjectDirectory());
        return wm != null;
    }
 
    /** 
     * Obtain the value of a project property
     * @param project the Project object 
     * @param propName name of the property
     * @return the value of the property
     */
    public static String getProjectProperty(Project project, String propName) {
        if (isWebProject(project)) {
            UpdateHelper updateHelper = ((WebProject) project).getUpdateHelper();
            EditableProperties props = updateHelper.getProperties (AntProjectHelper.PROJECT_PROPERTIES_PATH);
            return props.getProperty(propName);
        } else {
            return null;
        }
    }
 
    /** 
     * Set the value of a project property
     * @param project the Project object 
     * @param propName name of the property
     * @param value the value of the property
     */
    public static void putProjectProperty(Project project, String propName, String value) {
        if (isWebProject(project)) {
            UpdateHelper updateHelper = ((WebProject) project).getUpdateHelper();
            AntProjectHelper helper = ((WebProject) project).getHelper();
            EditableProperties props = updateHelper.getProperties (AntProjectHelper.PROJECT_PROPERTIES_PATH);
            props.setProperty(propName, value);
            helper.putProperties(AntProjectHelper.PROJECT_PROPERTIES_PATH, props);
            try {
                ProjectManager.getDefault().saveProject(project);
            } catch (Exception e) {
                ErrorManager.getDefault().notify(e);
            }
        }
    }
 
    /** 
     * Add a property listener to the project
     * @param project the Project object 
     * @param l Listener implementation
     */
    public static void addProjectPropertyListener(Project project, PropertyChangeListener l) {
        if (isWebProject(project)) {
            AntProjectHelper helper = ((WebProject) project).getHelper();
            PropertyEvaluator propEval = helper.getStandardPropertyEvaluator();
            propEval.addPropertyChangeListener(l);
        }
    }
 
    /** 
     * Remove a property listener from the project
     * @param project the Project object 
     * @param l Listener implementation
     */
    public static void removeProjectPropertyListener(Project project, PropertyChangeListener l) {
        if (isWebProject(project)) {
            AntProjectHelper helper = ((WebProject) project).getHelper();
            PropertyEvaluator propEval = helper.getStandardPropertyEvaluator();
            propEval.removePropertyChangeListener(l);
        }
    }