var Vers=parseInt(navigator.appVersion);
var IExplorer4=((document.all)&&(Vers>=4))?true:false;
var Netscape6=(!IExplorer4) ? true : false;

var OpenMenu=new Array();
var Timer=null;

function clearTimer()
  {
   if (Timer)
     {
      clearTimeout (Timer);
      Timer = null;
     }
  }

function setTimer()
  {
   Timer = window.setTimeout('CloseAll(0)', 250);
  }

function on(id, color)
{ document.getElementById(id).style.backgroundColor =color;}

function ShowMenu(id, level)
  {
   clearTimer();
   if (IExplorer4)
     return ShowMenuE(id, level);
   if (Netscape6)
     return ShowMenuN(id, level);
   return true;
  }

function ShowMenuE(id, level)
  {
   elem = eval (id);
   if (OpenMenu[level]!=elem)
     CloseAll(level);
   if (document.all.item(id) == null)
     return true;
   else
   elem.style.display = "block";
   elem.style.visibility = "visible";
   OpenMenu[level]=elem;
   return false;
  }

function ShowMenuN(id, level)
  {
   if (OpenMenu[level]!=id)
     CloseAll(level);
   elem = document.getElementById(id);
   if (elem == undefined)
     return true;
   else
   elem.style.display = "block";
   elem.style.visibility = "visible";
   OpenMenu[level]=id;
   return false;
  }

function CloseMenu(level)
  {
   if (IExplorer4)
     return CloseMenuE(level);
   if (Netscape6)
     return CloseMenuN(level);
   return true;
  }

function CloseMenuE(level)
  {
   if (OpenMenu[level])
     {
      OpenMenu[level].style.display = "none";
      OpenMenu[level].style.visibility = "hidden";
     }
   OpenMenu[level]=null;
  }

function CloseMenuN(level)
  {
   if (OpenMenu[level])
     {
      document.getElementById(OpenMenu[level]).style.visibility = "hidden";
      document.getElementById(OpenMenu[level]).style.display = "none";
     }
   OpenMenu[level]=null;
  }

function CloseAll(level)
  {
   clearTimer();
   for (i=level; i<OpenMenu.length; i++)
     CloseMenu(i);
  }

function ScrollHeader()
{
 if (IExplorer4)
    {if (document.body.scrollTop>150)
        {Header.style.top=document.body.scrollTop;}
     else {Header.style.top=150;}
    }
 else
    {if (self.pageYOffset>150)
        {document.getElementById('Header').style.top=self.pageYOffset;}
     else {document.getElementById('Header').style.top=150;}
    }
  setTimeout("ScrollHeader()",250)
}