var fwIsNetscape = navigator.appName == 'Netscape';


fwLoad = new Object;
function FWLoad(image)
{
	if (!document.images)
		return null;
	if (!fwLoad[image])
	{
		fwLoad[image]=new Image;
		fwLoad[image].src=image;
	}
	return fwLoad[image].src;
}


fwRestore = new Object;
function FWRestore(msg,chain)
{
	if (document.images)
		for (var i in fwRestore)
		{
			var r = fwRestore[i];
			if (r && (!chain || r.chain==chain) && r.msg==msg)
			{
				r.src = FWLoad(r.old);
				fwRestore[i]=null;
			}
		}
}


function FWLSwap(name,msg,newImg,layer,chain,trigger)
{
	var r = fwRestore[name];
	if (document.images && (!r || r.msg < msg))
	{
		var uselayers = fwIsNetscape && document.layers && layer != '';
		var hld = (uselayers) ? document.layers[layer].document : document;
		var im = hld[name];
		if (!im.old) im.old = im.src;
		im.msg = msg;
		im.chain = chain;
		im.trigger = trigger;
		if (newImg) im.src = FWLoad(newImg);
		fwRestore[name] = im;
	}
}


function FWCallHit(func,targNum,msg)
{
	if(func)
		for (var i in func)
			func[i](targNum,msg);
}
function FW_Hit(frameset,chain,targNum,msg)
{
	if (frameset && frameset.length)
		for (var i=0 ; i <frameset.length ; i++)
		{
			FW_Hit(frameset[i].frames,chain,targNum,msg);
			FWCallHit(top["FT_"+chain],targNum,msg);
			FWCallHit(frameset[i].window["FT_"+chain],targNum,msg);
		}
	else
		FWCallHit(window["FT_"+chain],targNum,msg);
}


fwHit = new Object;
function FWSlave(frameset,chain,targNum,msg)
{
	if (msg==1) fwHit[chain]=targNum;
	FW_Hit(frameset,chain,targNum,1);
}

function FWSRestore(frameset,chain)
{
	var hit=fwHit[chain];
	if (hit)
		FW_Hit(frameset,chain,hit,0);
	fwHit[chain]=null;
}

function FWPreload()
{
	FWLoad("Resources/aboutoff.gif");
	FWLoad("Resources/aboutOrange.gif");
	FWLoad("Resources/bandsoff.gif");
	FWLoad("Resources/bandsOrange.gif");
	FWLoad("Resources/venuesoff.gif");
	FWLoad("Resources/venuesOrange.gif");
	FWLoad("Resources/showlistoff.gif");
	FWLoad("Resources/showlistOrange.gif");
	FWLoad("Resources/homeoff.gif");
	FWLoad("Resources/homeOrange.gif");
}