var drawed_menu_countdown = '';
var drawed_menu = '';

function showMenu(menu){
    hide_drawed_menu();
    document.getElementById(menu).style.display = '';
    drawed_menu = menu;
    start_draw_menu_countdown();
}

function start_draw_menu_countdown(){
 if (drawed_menu_countdown!=''){clearTimeout(drawed_menu_countdown);}
 drawed_menu_countdown = setTimeout("hide_drawed_menu()",2000);
}


function keep_drawed_menu(){
           clearTimeout(drawed_menu_countdown);
}

function hide_drawed_menu(){
          if (drawed_menu!='' && document.getElementById(drawed_menu)) document.getElementById(drawed_menu).style.display='none';
}