// browsercheck
var newDHTML = (document.getElementById) ? true : false;
var ns = (navigator.appName.indexOf('Netscape')!=-1) ? true : false;
var ie = (document.all) ? true : false;
var mac = (navigator.platform.indexOf('Mac') !=-1) ? true : false;

// init
var menu_fadeout = 250;

menutimeout1 = window.setTimeout("dummy()",10);
menutimeout2 = window.setTimeout("dummy()",10);
menutimeout3 = window.setTimeout("dummy()",10);
menutimeout4 = window.setTimeout("dummy()",10);
menutimeout5 = window.setTimeout("dummy()",10);
menutimeout6 = window.setTimeout("dummy()",10);
menutimeout7 = window.setTimeout("dummy()",10);
menutimeout8 = window.setTimeout("dummy()",10);

function dummy()
{
		return true;
}

// Bottom row text
function menustart(layer_no)
{
	if (layer_no == 1) window.clearTimeout(menutimeout1);
	else if (layer_no == 2) window.clearTimeout(menutimeout2);
	else if (layer_no == 3) window.clearTimeout(menutimeout3);
	else if (layer_no == 4) window.clearTimeout(menutimeout4);
	else if (layer_no == 5) window.clearTimeout(menutimeout5);
	else if (layer_no == 6) window.clearTimeout(menutimeout6);
	else if (layer_no == 7) window.clearTimeout(menutimeout7);
	else if (layer_no == 8) window.clearTimeout(menutimeout8);
	
	layer_name = 'menu' + layer_no;
	showLayer(layer_name);
}

function menuhold(layer_no)
{
	if (layer_no == 1) window.clearTimeout(menutimeout1);
	else if (layer_no == 2) window.clearTimeout(menutimeout2);
	else if (layer_no == 3) window.clearTimeout(menutimeout3);
	else if (layer_no == 4) window.clearTimeout(menutimeout4);
	else if (layer_no == 5) window.clearTimeout(menutimeout5);
	else if (layer_no == 6) window.clearTimeout(menutimeout6);
	else if (layer_no == 7) window.clearTimeout(menutimeout7);
	else if (layer_no == 8) window.clearTimeout(menutimeout8);
}

function menufadeout(layer_no)
{
	if (layer_no == 1) menutimeout1 = window.setTimeout("hideLayer('menu1')",menu_fadeout);
	else if (layer_no == 2) menutimeout2 = window.setTimeout("hideLayer('menu2')",menu_fadeout);
	else if (layer_no == 3) menutimeout3 = window.setTimeout("hideLayer('menu3')",menu_fadeout);
	else if (layer_no == 4) menutimeout4 = window.setTimeout("hideLayer('menu4')",menu_fadeout);
	else if (layer_no == 5) menutimeout5 = window.setTimeout("hideLayer('menu5')",menu_fadeout);
	else if (layer_no == 6) menutimeout6 = window.setTimeout("hideLayer('menu6')",menu_fadeout);
	else if (layer_no == 7) menutimeout7 = window.setTimeout("hideLayer('menu7')",menu_fadeout);
	else if (layer_no == 8) menutimeout8 = window.setTimeout("hideLayer('menu8')",menu_fadeout);
}

// Basic layer functions
function showLayer(layer_to_show)
{
	if (newDHTML)
	{
		document.getElementById(layer_to_show).style.visibility ="visible";
	}
	else if (ns)
	{
		document.layers[layer_to_show].visibility="show";
	}
	else
	{
		document.all[layer_to_show].style.visibility="visible";
	}
}

function hideLayer(layer_to_hide)
{
	if (newDHTML)
	{
		document.getElementById(layer_to_hide).style.visibility ="hidden";
	}
	else if (ns)
	{
		document.layers[layer_to_hide].visibility="hide";
	}
	else
	{
		document.all[layer_to_hide].style.visibility="hidden";
	}
}

//	open new window
function newwindow(URL,WindowName,newwidth,newheight,scroll)
{
	pic_data='width='+newwidth+',height='+newheight+',directories=no,location=no,menubar=no,resizable=yes,scrollbars='+scroll+',toolbar=no,screenX=0,screenY=0';
	window.open(URL,WindowName,pic_data);
}