function showServices () {

  if (!$("#menu_innovations_pages").is(":hidden")) {

    $("#menu_innovations_pages").slideUp();

  }

  if (!$("#menu_projects_pages").is(":hidden")) {

    $("#menu_projects_pages").slideUp();

  }

    if (!$("#menu_current_pages").is(":hidden")) {

    $("#menu_current_pages").slideUp();

  }

  $("#menu_services_pages").slideToggle();

}



function showInnovations () {

  if (!$("#menu_services_pages").is(":hidden")) {

    $("#menu_services_pages").slideUp();

  }

  if (!$("#menu_projects_pages").is(":hidden")) {

    $("#menu_projects_pages").slideUp();

  }

      if (!$("#menu_current_pages").is(":hidden")) {

    $("#menu_current_pages").slideUp();

  }

  $("#menu_innovations_pages").slideToggle();

}



function showProjects () {

  if (!$("#menu_services_pages").is(":hidden")) {

    $("#menu_services_pages").slideUp();

  }

  if (!$("#menu_innovations_pages").is(":hidden")) {

    $("#menu_innovations_pages").slideUp();

  }

      if (!$("#menu_current_pages").is(":hidden")) {

    $("#menu_current_pages").slideUp();

  }

  $("#menu_projects_pages").slideToggle();

}



function showCurrent () {

  if (!$("#menu_services_pages").is(":hidden")) {

    $("#menu_services_pages").slideUp();

  }

  if (!$("#menu_innovations_pages").is(":hidden")) {

    $("#menu_innovations_pages").slideUp();

  }

      if (!$("#menu_projects_pages").is(":hidden")) {

    $("#menu_projects_pages").slideUp();

  }

  $("#menu_current_pages").slideToggle();

}



function showList () {

  if (!$("#menu_other_pages").is(":hidden")) {

    $("#menu_other_pages").slideUp();

  }  

  $("#menu_list_pages").slideToggle();

}



$(document).ready(function() {

  $("#menu_services_header").click(showServices);

  $("#menu_innovations_header").click(showInnovations);

  $("#menu_projects_header").click(showProjects);

  $("#menu_current_header").click(showCurrent);

});