function showMessage(option){
    if(document.getElementById('msj'+option).style.display == 'block'){
        document.getElementById('msj'+option).style.display = 'none';
    }else{
        document.getElementById('msj'+option).style.display = 'block';
    }
}

function showSubMenu(){
    var subMenu = document.getElementById('subMenu');
    if(subMenu != null){
        subMenu.style.display = 'block';
    }
}

function unShowSubMenu(){
    var subMenu = document.getElementById('subMenu');
    if(subMenu != null){
        subMenu.style.display = 'none';
    }
}