/*
png handling thanks to skinnycorp (http://www.skinnycorp.com)
sleightjs thanks to aaron boodman (http://www.youngpup.net)
*/
if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
	document.writeln('<style type="text/css">img, input.image { visibility:hidden; } </style>');
	window.attachEvent("onload", fnLoadPngs);
}

function fnLoadPngs() {
	var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
	var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);

	for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--) {
		if (itsAllGood && img.src.match(/\.png$/i) != null) {
			fnFixPng(img);
			img.attachEvent("onpropertychange", fnPropertyChanged);
		}
		img.style.visibility = "visible";
	}

	var nl = document.getElementsByTagName("INPUT");
	for (var i = nl.length - 1, e = null; (e = nl[i]); i--) {
		if (e.className && e.className.match(/\bimage\b/i) != null) {
			if (e.src.match(/\.png$/i) != null) {
				fnFixPng(e);
				e.attachEvent("onpropertychange", fnPropertyChanged);
			}
			e.style.visibility = "visible";
		}
	}
}

function fnPropertyChanged() {
	if (window.event.propertyName == "src") {
		var el = window.event.srcElement;
		if (!el.src.match(/x\.gif$/i)) {
			el.filters.item(0).src = el.src;
			el.src = "imgs/x.gif";
		}
	}
}

function dbg(o) {
	var s = "";
	var i = 0;
	for (var p in o) {
		s += p + ": " + o[p] + "\n";
		if (++i % 10 == 0) {
			alert(s);
			s = "";
		}
	}
	alert(s);
}

function fnFixPng(img) {
	var src = img.src;
	img.style.width = img.width + "px";
	img.style.height = img.height + "px";
	img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')"
	img.src = "imgs/0.gif";
}

nav01o = new Image();
nav01o.src = "imgs/nav01o.png";
nav01b = new Image();
nav01b.src = "imgs/nav01b.png";
nav01w = new Image();
nav01w.src = "imgs/nav01w.png";
nav02o = new Image();
nav02o.src = "imgs/nav02o.png";
nav02b = new Image();
nav02b.src = "imgs/nav02b.png";
nav02w = new Image();
nav02w.src = "imgs/nav02w.png";
nav03o = new Image();
nav03o.src = "imgs/nav03o.png";
nav03b = new Image();
nav03b.src = "imgs/nav03b.png";
nav03w = new Image();
nav03w.src = "imgs/nav03w.png";
nav04o = new Image();
nav04o.src = "imgs/nav04o.png";
nav04b = new Image();
nav04b.src = "imgs/nav04b.png";
nav04w = new Image();
nav04w.src = "imgs/nav04w.png";
nav05o = new Image();
nav05o.src = "imgs/nav05o.png";
nav05b = new Image();
nav05b.src = "imgs/nav05b.png";
nav05w = new Image();
nav05w.src = "imgs/nav05w.png";
nav06o = new Image();
nav06o.src = "imgs/nav06o.png";
nav06b = new Image();
nav06b.src = "imgs/nav06b.png";
nav06w = new Image();
nav06w.src = "imgs/nav06w.png";
nav07o = new Image();
nav07o.src = "imgs/nav07o.png";
nav07b = new Image();
nav07b.src = "imgs/nav07b.png";
nav07w = new Image();
nav07w.src = "imgs/nav07w.png";
nav08o = new Image();
nav08o.src = "imgs/nav08o.png";
nav08b = new Image();
nav08b.src = "imgs/nav08b.png";
nav08w = new Image();
nav08w.src = "imgs/nav08w.png";
joino = new Image();
joino.src = "imgs/joino.png";
joinw = new Image();
joinw.src = "imgs/joinw.png";

function rollo(name){
	if(document.images){
		document[name].src=eval(name+"o.src");
	}
}

function rollb(name){
	if(document.images){
		document[name].src=eval(name+"b.src");
	}
}

function rollw(name){
	if(document.images){
		document[name].src=eval(name+"w.src");
	}
}

function openwin(url,winname,w,h,attribs) {
	var l = parseInt((screen.availWidth-w)/2);
	var t = parseInt((screen.availHeight-h)/2);
	attribs = 'width='+w+',height='+h+',left='+l+',top='+t+(attribs!=null ? ','+attribs : '');
	var win = window.open(url, winname, attribs);
	win.focus();
	return false;
}