var ns4 = document.layers?true:false

var iePC = document.all && document.getElementById

var ieMac = document.all && !document.getElementById

var ns6 = document.getElementById && !document.all

var ie = iePC || ieMac

var timerID = null

var timerID2 = null

onscroll = scrollLayerIE

if (ns4)

{

	onresize = reload

	startPos = 100

}

else

{

	onresize = resizeLayerIE

	startPos = 85

}

if (ns4 || ns6)

{

	var lastPageYOffset = pageYOffset

	NSTimer = setInterval("scrollLayerNS()",100);

}

function reload()

{

	location.reload()

}

function resizeLayerIE()

{

	if (timerID2)

		clearTimeout(timerID2)

		status = document.body.scrollTop

	if (document.body.scrollTop > startPos)

	{

		TimerID2 = setTimeout("resizeMenu("+(document.body.clientHeight+startPos)+")",500)

	}

	else

	{

		resizeMenu(document.body.clientHeight)

	}

}

function scrollLayerIE()

{

	if (timerID)

		clearTimeout(timerID)

//		status = document.body.scrollTop

	if (document.body.scrollTop > startPos)

	{

		hideMenu()

		timerID = setTimeout("displayMenu(-150)",500)

//		TimerID2 = setTimeout("resizeMenu("+(document.body.clientHeight+startPos)+")",500)

	}

	else 

	{

		showMenu()

		moveMenuXY(0,startPos)

//		resizeMenu(document.body.clientHeight)

	}

}



function scrollLayerNS() 

{

	if (lastPageYOffset != pageYOffset)

	{

		if (timerID && ns4)

			clearTimeout(timerID)

		lastPageYOffset = pageYOffset

		if (pageYOffset > startPos)

		{

			hideMenu()

			if (timerID == null)

				timerID = setTimeout("displayMenu(-150)",500)

		}

		else

		{

			showMenu()

			clearTimeout(timerID)

			timerID = null

			moveMenuXY(0,startPos)

		}

	}

}

function resizeMenu(size)

{

	document.getElementById("menu").style.clip = 'rect(0px '+document.getElementById('menu').style.width+' '+(size-100)+'px 0px)'

}



function showMenu()

{

	if (ns4 && document.layers["menu"] && document.layers["menu"].visibility)

		document.layers["menu"].visibility = "show"

	else if ((ie || ns6) && (document.getElementById('menu') && document.getElementById('menu').style))

		document.getElementById('menu').style.visibility = "visible"

}



function moveMenuX(newpos)

{

	if (ns4 && document.layers["menu"] && document.layers["menu"].visibility)

		document.layers["menu"].left = newpos

	else if ((ie || ns6) && (document.getElementById('menu') && document.getElementById('menu').style))

		document.getElementById('menu').style.left = newpos

}

function moveMenuXY(posX,posY)

{

		moveMenuX(posX)

		moveMenuY(posY)

}

function moveMenuY(newpos)

{

	if (ns4 && document.layers["menu"] && document.layers["menu"].top)

		document.layers["menu"].top = newpos

	else if ((ie || ns6) && (document.getElementById('menu') && document.getElementById('menu').style))

		document.getElementById('menu').style.top = newpos

}

function hideMenu()

{

	if (ns4 && document.layers["menu"] && document.layers["menu"].visibility)

		document.layers["menu"].visibility = "hidden"

	else if ((ie || ns6) && (document.getElementById('menu') && document.getElementById('menu').style))

		document.getElementById('menu').style.visibility = "hidden"

}



function displayMenu(decalPos)

{

		if (ns4 || ns6)

			currPos = pageYOffset > startPos?pageYOffset:startPos

		else if (ie)

			currPos = document.body.scrollTop > startPos?document.body.scrollTop:startPos

	moveMenuX(decalPos)

	moveMenuY(currPos)

	showMenu()

	if (decalPos < 0)

		setTimeout("displayMenu("+(decalPos+10)+")",5)

	else

	{

		clearTimeout(timerID)

		timerID = null

		moveMenuX(0)

	}

}