var blnIsMac = false
var strPlatform = window.navigator.platform.toLowerCase()
var strLastMenu = "mnu_home"

function showMenu(strMenu) {
	if (!blnIsMac) {

		var objLayer
	
		hideMenu(strLastMenu)
		
		if (document.all) {
			objLayer = document.all[strMenu]
		}
		else if (document.getElementById) {
			objLayer = document.getElementById(strMenu)
		}
		else if (document.layers) {
			objLayer = getLayer(strMenu)
		}
	
		// show
		if (document.all) {
			objLayer.style.visibility = "visible"
		}
		else if (document.getElementById) {
			objLayer.style.visibility = "visible"
		}
		else if (document.layers) {
			if (parseFloat(navigator.appVersion) >= 4.08) {
				// move to position relative to image
				objImage = getImage("l_" + strMenu.substring(3, strMenu.length))
				intTop = getImagePageTop(objImage)
				intLeft = getImagePageLeft(objImage)
				objLayer.top = intTop + objImage.height
				objLayer.left = intLeft - 1
				
				// show
				objLayer.visibility = "show"
			}
		}
				
		strLastMenu = strMenu
	}
}

function hideMenu(strMenu) {

	if (!blnIsMac) {

		var objLayer
		var isIn = false
		var i = 0
		var blnIsFromFlash = false
		
		if (strMenu == "hideFromFlash")
			blnIsFromFlash = true
	
		if (strMenu == "" || blnIsFromFlash)
			strMenu = strLastMenu
	
		if (document.all) {
			objLayer = document.all[strMenu]
		}
		else if (document.getElementById) {
			objLayer = document.getElementById(strMenu)
		}
		else if (document.layers) {
			objLayer = getLayer(strMenu)
		}
	
		// hide
		if (document.all) {
			if (!blnIsFromFlash) {
				while (!isIn && i < document.all[strMenu].all.length) {
					if (window.event.toElement == document.all[strMenu].all[i])
						isIn = true
					i++
				}
				if (!isIn) {
					document.all[strMenu].style.visibility = "hidden"
				}
			}
			else {
				document.all[strMenu].style.visibility = "hidden"
			}
		}
		else if (document.getElementById) {
			objLayer.style.visibility = "hidden"
		}
		else if (document.layers) {
			if (parseFloat(navigator.appVersion) >= 4.08) {
				objLayer.visibility = "hide"
			}
		}
	}
}