public static void setSystemLaF(boolean s){
        //if(true) return ;
        s=true;
        try {
            if(s){
                boolean find=false;
                for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                    if (LaF.equals(info.getName())) {
                        UIManager.setLookAndFeel(info.getClassName());
                        find=true;
                        break;
                    }
                }
                if(!find)
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                //UIManager.put("nimbusBase", new Color(51,140,98));
            }
            else
                UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(global.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            Logger.getLogger(global.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            Logger.getLogger(global.class.getName()).log(Level.SEVERE, null, ex);
        } catch (UnsupportedLookAndFeelException ex) {
            Logger.getLogger(global.class.getName()).log(Level.SEVERE, null, ex);
        }
    }