var IE5or6 = document.getElementById
  && document.all
  && (navigator.userAgent.toLowerCase().indexOf("msie 6")!=-1
      || navigator.userAgent.toLowerCase().indexOf("msie 5")!=-1)
  && navigator.userAgent.toLowerCase().indexOf("opera")==-1;

function reallyHideMenu()
{
  var layer = document.getElementById('Layer1');
  layer.style.visibility='hidden';
}

function showMenu()
{
  if (IE5or6) {
    this.timer = clearTimeout(this.timer);
    var layer = document.getElementById('Layer1');
    layer.style.visibility='visible';
    layer.style.xdisplay='';
    layer.style.left = (document.body.clientWidth-749)/2+8;
  }
}

function hideMenu()
{
  if (IE5or6) {
    this.timer = setTimeout("reallyHideMenu()", 300);
  }
}

function addMenuItem(title, href)
{
  if (IE5or6) {
    document.writeln("<tr>");
    document.writeln("  <td bgcolor='A4BECF' class='dropdown' onmouseover='showMenu();' onmouseout='hideMenu();'><a href='" + href + "'>" + title + "</a></td>");
    document.writeln("</tr>");
  }
}

function addSpacer()
{
  if (IE5or6) {
    document.writeln("<tr>");
    document.writeln("  <td height='1' bgcolor='#7A97AA' onmouseover='showMenu();' onmouseout='hideMenu();'><img src='images/spacer.gif' width='1' height='1'></td>");
    document.writeln("</tr>");
  }
}