var timer, i, menuId;

var dom = document.getElementById ? true : false;
var ie4 = ((document.all) && (!dom)) ? true : false;
var ns4 = document.layers ? true : false;
var opera = navigator.userAgent.indexOf('Opera') != -1 ? true : false;
var dhtml = dom ? true : ie4 ? true : ns4 ? true : false;

if (dhtml) document.write ('<style type="text/css">#scriptSupport {display: none;} #menuHolder {position: relative; visibility: hidden; z-index: 1;} #hiddenMenu1, #hiddenMenu2, #hiddenMenu3, #hiddenMenu4, #hiddenMenu5, #hiddenMenu6, #hiddenMenu7, #hiddenMenu8 {position: absolute; visibility: hidden;} #visibleMenu1 {position: absolute; left: 0px;	top: 0px;} #visibleMenu2 {position: absolute;	left: 70px; top: 0px;} #visibleMenu3 {position: absolute; left: 190px;	top: 0px;} #visibleMenu4 {position: absolute;	left: 300px; top: 0px;} #visibleMenu5 {position: absolute; left: 390px; top: 0px;} #visibleMenu6 {	position: absolute; left: 490px; top: 0px;} #visibleMenu7 {position: absolute;	left: 615px;top: 0px;} #visibleMenu8 {position: absolute;	left: 690px;top: 0px;} #hiddenMenu1 {left: 3px;	top: 22px;} #hiddenMenu2 {	left: 70px; top: 22px;} #hiddenMenu3 {left: 190px;	top: 22px;} #hiddenMenu4 {	left: 300px; top: 22px;} #hiddenMenu5 {left: 390px;	top: 22px;} #hiddenMenu6 {	left: 490px; top: 22px;} #hiddenMenu7 {left: 615px;	top: 22px;} #hiddenMenu8 {left: 690px;	top: 22px;}</style>');

function setVisibility(element,newVisibility)
{ 
  if (dhtml)
  {
    if (dom) document.getElementById(element).style.visibility = newVisibility;
    else if (ie4) document.all[element].style.visibility = newVisibility;
    else if (ns4) eval('document.' + element + '.visibility = newVisibility');
  }
}

function menu()
{
  if (dhtml)
  {
    if (opera) for (i = 1; i <= 8; i++) document.getElementById('hiddenMenu' + i).style.top = 20;
    if (ie4) for (i = 1; i <= 8; i++) document.all['hiddenMenu' + i].style.top = 18;
    setVisibility('menuHolder','visible');
  }
}

function showMenu(id)
{
  if (dhtml)
  {
    clearTimeout(timer);
    for (i = 1; i <= 8; i++) if (i != id) setVisibility((ns4 ? 'menuHolder.document.' : '') + 'hiddenMenu' + i,'hidden');
    setVisibility((ns4 ? 'menuHolder.document.' : '') + 'hiddenMenu' + id,'visible');
  }
}

function hideMenu(id)
{
  if (dhtml)
  {
    menuId = (ns4 ? 'menuHolder.document.' : '') + 'hiddenMenu' + id;
    timer = setTimeout("setVisibility(menuId,'hidden')",50);
  }
}

function dontHideMenu()
{
  if (dhtml) clearTimeout(timer);
}