function changeOver_menu(id,tablica)
{
zeruj(tablica);
//alert('zaczynamy');
document.getElementById(id).style.backgroundImage = "url(Image/menu_main_over.jpg)";
document.getElementById(id).style.backgroundRepeat = "repeat-x";
document.getElementById(id + "left").style.backgroundImage = "url(Image/menu_main_over_left.jpg)";
document.getElementById(id + "right").style.backgroundImage = "url(Image/menu_main_over_right.jpg)";
document.getElementById("submenu" + id).style.visibility = "visible";
//alert('aktywny' + id);
}

function zeruj(tablica)
{ 
   for(i=0;i<tablica.length;i++) {
      document.getElementById(tablica[i]).style.backgroundImage = "url(Image/menu_main_tlo.jpg)";
      document.getElementById(tablica[i] + "left").style.backgroundImage = "url(Image/menu_main_tlo.jpg)";
      document.getElementById(tablica[i] + "right").style.backgroundImage = "url(Image/menu_main_tlo.jpg)";
      document.getElementById("submenu" + tablica[i]).style.visibility = "hidden";
      //alert('schowano ' + tablica.length);
    } 
}

function submenu(tablica)
{
  for(i=0;i<tablica.length;i++) {
    document.getElementById("submenu" + tablica[i]).style.visibility = "hidden";
  } 
}
function aktywne(id)
{
	//alert(id);
	document.getElementById(id).style.backgroundImage = "url(Image/menu_main_over.jpg)";
	document.getElementById(id).style.backgroundRepeat = "repeat-x";
	document.getElementById(id + "left").style.backgroundImage = "url(Image/menu_main_over_left.jpg)";
	document.getElementById(id + "right").style.backgroundImage = "url(Image/menu_main_over_right.jpg)";
	document.getElementById("submenu" + id).style.visibility = "visible";
}