function OpenMenu(id){ 
   document.getElementById(id).style.visibility = 'visible';
}
function CloseMenu(id){
   document.getElementById(id).style.visibility = 'hidden';
}

/* new Image().src='img/header_home_2.gif'; 
new Image().src='img/header_sitemap_2.gif';
new Image().src='img/nav_profile_2.gif';
new Image().src='img/nav_partners_2.gif';
new Image().src='img/nav_pamphlet_2.gif';
new Image().src='img/nav_consult_2.gif';
new Image().src='img/nav_privacy_2.gif';
new Image().src='img/nav_staff_2.gif';*/
new Image().src='../img/menu_berkstyle_2.jpg';
new Image().src='../img/menu_housemake_2.jpg';
new Image().src='../img/menu_architect_2.jpg';
new Image().src='../img/menu_works_2.jpg';
new Image().src='../img/menu_voice_2.jpg';
new Image().src='../img/menu_modelhouse_2.jpg';
/*new Image().src='img/home_contact_btn_p_2.gif';
new Image().src='img/home_contact_btn_a_2.gif';*/