var browser=navigator.appName;
var platform=navigator.appVersion;
var cssFile="";
var currentStyle="no";
var layerNumToShow=1;
var layerNumShowing=1;
var totalLayersInLoop=1;
var pageNumToShow=1;
var pageNumShowing=1;
var buttonNumToShow=1;
var buttonNumShowing=1;
var lastLayer="";
var lastSubMenu="";
var lastMainMenu="";
var layerName="";
var lastSite="";
var layerStyleRef="layer.";
var layerRef="document.layers";
var 	styleSwitch="";

var is_major = parseInt(navigator.appVersion);
var is_nav4 = ((browser == "Netscape") && (is_major == 4));
var is_nav6up = ((browser == "Netscape") && (is_major >= 5));
if (browser == "Microsoft Internet Explorer") is_ie="true";
if (browser == "Netscape") // this is the Netscape browser sniffer
    	 	{
     		if (navigator.appVersion.indexOf("Macintosh") == -1) 
          		{
          		currentStyle='Windows Netscape';
          		} 
     		else 
          		{
          		currentStyle='Macintosh Netscape';
          		}
     		}
if (browser == "Microsoft Internet Explorer")
     		{
         	if (platform.indexOf("Macintosh") == -1) 
               	{
               	currentStyle='Windows Explorer';
               	} 
          	else 
               	{
               	currentStyle='Macintosh Explorer';
               	}
    	}

function init(number)
	{
	totalLayersInLoop=number;

	if (document.getElementById) {
			layerStyleRef="layer.style.";
			layerRef="document.getElementById"; 
			styleSwitch=".style";
		}
		else if (document.layers) {
		layerStyleRef="layer.";
			layerRef="document.layers";
			styleSwitch="";
		}
	ss='mantastyles.css'; 
	document.write( "<link href='"+ss+"'  rel='styleSheet'  type='text/css'>");
	}

function showMenu(level, menuName, message){
	window.status = message;
	if  (level == 1)
	{
		if (lastMainMenu!='') {hideLayer(lastMainMenu);}
		showLayer(menuName);
		lastMainMenu = menuName;
	} else {
		if (lastSubMenu!='') {hideLayer(lastSubMenu);}
		showLayer(menuName);
		lastSubMenu = menuName;
	}
}
function clearMenus(){
hideLayer('menu1');hideLayer('menu2');hideLayer('menu3');hideLayer('menu4');hideLayer('menu5');hideLayer('menu6');
}

function showMenuMsg(menuName, message){
	showLayer(menuName);
	window.status = message;
}


function changeLayer(layerName, lastLayer){
	showLayer(layerName);
	if (lastLayer!='') {hideLayer(lastLayer);}
}

function showSite(siteName){
	showLayer(siteName);
	if (lastSite!='') {hideLayer(lastSite);}
	lastSite = siteName;
}


function showLayer(layerName){
	if (is_nav4)
	eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
	else
	eval(layerRef+'("'+layerName+'")'+styleSwitch+'.visibility="visible"');
}

function hideLayer(layerName){
		if (is_nav4)
		eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
		else
		eval(layerRef+'("'+layerName+'")'+styleSwitch+'.visibility="hidden"');
}

function showWinMsg(message) {
	window.status=message;
	return true;
}

function showMessage(layerName, message) {
	showLayer(layerName);
	window.status = message;
	return true;
}

function clearMessage(layerName) {
	window.status = " "
	return true
}

function showLayerNumber(number){
	var layerNumToShow=number;
	hideLayer(eval('"layer' + layerNumShowing+'"'));
	showLayer(eval('"layer' + layerNumToShow+'"'));

	layerNumShowing=layerNumToShow;
	hideLayer('loopControls');
}
function showPreviousLayer(){
	var layerNumToShow=layerNumShowing-1;
	if (layerNumToShow < 1){layerNumToShow=totalLayersInLoop;}
	hideLayer('loopControls');
	hideLayer(eval('"layer' + layerNumShowing+'"'));
	showLayer(eval('"layer' + layerNumToShow+'"'));
	layerNumShowing=layerNumToShow;
}
function showNextLayer(){
	layerNumToShow=layerNumShowing+1;
	if (layerNumToShow > totalLayersInLoop) {layerNumToShow=1; }
	hideLayer('loopControls');
	hideLayer(eval('"layer' + layerNumShowing+'"'));
	showLayer(eval('"layer' + layerNumToShow+'"'));
	layerNumShowing=layerNumToShow;
}

function open_new_win (file, x, y) {
msg=open("","NewWindow","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width="+x+", height="+y+"");
msg.location = file
}

function showPart(partName,msg) {
	showLayer(partName);
	window.status = msg;
	return true;
}

function clearPart(partName) {
	hideLayer(partName);
	window.status = ""
	return true
}

function clearAllparts() {
	var parts = 10;
	for ( var i = 1; i <= parts; i++) {
	var partName = "part" + i;
	hideLayer(partName);
	}
	window.status = ""
	return true
}