function hideAll() {
  for(i=0;i<odiv.length;i++) {
    odiv[i].style.display="none";
  }
}
function showObj(num) {  
  if (odiv[num].style.display=="none") {
    hideAll();
    odiv[num].style.display="inline";
  }
  else {
    odiv[num].style.display="none";
  }
}

function showsubmenu(alex)
{
whichEl = eval("submenu" + alex);
if (whichEl.style.display == "none")
{
eval("submenu" + alex + ".style.display=\"\";");
}
else
{
eval("submenu" + alex + ".style.display=\"none\";");
}
}