var isIE = (document.all)?true:false
var isNN = (document.getElementById && !isIE)?true:false
var isMAC = (navigator.userAgent.toLowerCase().indexOf("mac")!=-1)?true:false

var layerRef =  'document.getElementById("';
var styleRef = '").style';
var idRef = (isNN) ? '").innerHTML' : '").innerHTML';
var topRef = (isNN) ? '.top' : '.pixelTop';
var leftRef = (isNN) ? '.left' : '.pixelLeft';
var ofsetRef = (isNN) ? '").offsetLeft' : '").offsetLeft';

var activeMenu = 0;
var buble = false;
var selectedSection = 0;


if (isNN) 
	var topPixel = 250;
else 
	var topPixel = 250;

if (isNN)
{
 document.captureEvents(Event.MOUSEMOVE);
 document.onmousemove = checkUp;
}
 else document.onmouseover = killMenu;


function activateSelected(menuLayerRef){
	buble = true;
	activateMenu(menuLayerRef);
	buble = false;
}

function spanIn(theSpan){
 theSpan.className='submenulinkhover';
}

function spanOut(theSpan){
 theSpan.className='submenulink';
}

function activateMenu(menuLayerRef){

 if (activeMenu != menuLayerRef)
 {
	if (activeMenu) 
		 hideMenu("menu" + activeMenu);
	menuID = "menu" + menuLayerRef;
	smenuID = "smenu" + menuLayerRef;
	activeMenu = menuLayerRef;	
	showMenu(menuID);

 }
 if (!isNN && !buble) 
	window.event.cancelBubble = true;
}

function showMenu(menuID) {
	eval(layerRef + menuID + styleRef + '.display = "block"');
	//eval(layerRef + smenuID + '").className = "TopMenuItemAHover"');

}

function hideMenu(menuID){
	eval(layerRef + menuID + styleRef + '.display = "none"');
	//eval(layerRef + smenuID + '").className = "TopMenuItemA"')
}

function killMenu(){
	
	if (selectedSection > 0) 
		activateSelected(selectedSection)
	else
	{
		if (activeMenu)
		{
			menuID = "menu" + activeMenu;
			hideMenu(menuID);
			activeMenu = 0;
		}
	}  
}

function checkUp(){
 if (isNN && (activeMenu != 0))
 {
  var x = e.pageX;
  var y = e.pageY;
  var x1 = eval('document.getElementById("menu' + activeMenu + '").style.width') + leftPixel;
  var y1 = topPixel-19;
  var y2 = eval('document.getElementById("menu' + activeMenu + '").style.height') + topPixel;
  if ((y < y1) || (y > y2) || (x < x1-80) || (x > x1)) setTimeout("killMenu(null)", 5000);
 }
}