function pokaz_menu(id, e)
{

window.document.getElementById('lewa_menu1').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu2').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu3').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu4').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu5').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu6').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu7').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('lewa_menu8').style.backgroundImage="url('gregor2010/pusty.gif')";

window.document.getElementById('srodek_menu1').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu2').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu3').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu4').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu5').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu6').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu7').style.backgroundColor="transparent";
window.document.getElementById('srodek_menu8').style.backgroundColor="transparent";

window.document.getElementById('prawa_menu1').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu2').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu3').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu4').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu5').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu6').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu7').style.backgroundImage="url('gregor2010/pusty.gif')";
window.document.getElementById('prawa_menu8').style.backgroundImage="url('gregor2010/pusty.gif')";

window.document.getElementById('pod_menu1').style.display="none";
window.document.getElementById('pod_menu2').style.display="none";
window.document.getElementById('pod_menu3').style.display="none";
window.document.getElementById('pod_menu4').style.display="none";
window.document.getElementById('pod_menu5').style.display="none";
window.document.getElementById('pod_menu6').style.display="none";
window.document.getElementById('pod_menu7').style.display="none";
window.document.getElementById('pod_menu8').style.display="none";



window.document.getElementById('lewa_'+id).style.backgroundImage="url('gregor2010/menu-lewa.gif')";
window.document.getElementById('srodek_'+id).style.backgroundColor="#092137";
window.document.getElementById('prawa_'+id).style.backgroundImage="url('gregor2010/menu-prawa.gif')";
window.document.getElementById('pod_'+id).style.display="block";
}