function NiftyCheck() {
	if (!document.getElementById || !document.createElement)
		return (false);
	isXHTML = /html\:/.test(document.getElementsByTagName('body')[0].nodeName);
	if (Array.prototype.push == null) {
		Array.prototype.push = function() {
			this[this.length] = arguments[0];
			return (this.length);
		}
	}
	return (true);
}

function Rounded(selector, wich, bk, color, opt) {
	var i, prefixt, prefixb, cn = "r", ecolor = "", edges = false, eclass = "", b = false, t = false;

	if (color == "transparent") {
		cn = cn + "x";
		ecolor = bk;
		bk = "transparent";
	} else if (opt && opt.indexOf("border") >= 0) {
		var optar = opt.split(" ");
		for (i = 0; i < optar.length; i++)
			if (optar[i].indexOf("#") >= 0)
				ecolor = optar[i];
		if (ecolor == "")
			ecolor = "#666";
		cn += "e";
		edges = true;
	} else if (opt && opt.indexOf("smooth") >= 0) {
		cn += "a";
		ecolor = Mix(bk, color);
	}
	if (opt && opt.indexOf("small") >= 0)
		cn += "s";
	prefixt = cn;
	prefixb = cn;
	if (wich.indexOf("all") >= 0) {
		t = true;
		b = true
	} else if (wich.indexOf("top") >= 0)
		t = "true";
	else if (wich.indexOf("tl") >= 0) {
		t = "true";
		if (wich.indexOf("tr") < 0)
			prefixt += "l";
	} else if (wich.indexOf("tr") >= 0) {
		t = "true";
		prefixt += "r";
	}
	if (wich.indexOf("bottom") >= 0)
		b = true;
	else if (wich.indexOf("bl") >= 0) {
		b = "true";
		if (wich.indexOf("br") < 0)
			prefixb += "l";
	} else if (wich.indexOf("br") >= 0) {
		b = "true";
		prefixb += "r";
	}
	var v = getElementsBySelector(selector);
	var l = v.length;
	for (i = 0; i < l; i++) {
		if (edges)
			AddBorder(v[i], ecolor);
		if (t)
			AddTop(v[i], bk, color, ecolor, prefixt);
		if (b)
			AddBottom(v[i], bk, color, ecolor, prefixb);
	}
}

function AddBorder(el, bc) {
	var i;
	if (!el.passed) {
		if (el.childNodes.length == 1 && el.childNodes[0].nodeType == 3) {
			var t = el.firstChild.nodeValue;
			el.removeChild(el.lastChild);
			var d = CreateEl("span");
			d.style.display = "block";
			d.appendChild(document.createTextNode(t));
			el.appendChild(d);
		}
		for (i = 0; i < el.childNodes.length; i++) {
			if (el.childNodes[i].nodeType == 1) {
				el.childNodes[i].style.borderLeft = "1px solid " + bc;
				el.childNodes[i].style.borderRight = "1px solid " + bc;
			}
		}
	}
	el.passed = true;
}

function AddTop(el, bk, color, bc, cn) {
	var i, lim = 4, d = CreateEl("b");

	if (cn.indexOf("s") >= 0)
		lim = 2;
	if (bc)
		d.className = "artop";
	else
		d.className = "rtop";
	d.style.backgroundColor = bk;
	for (i = 1; i <= lim; i++) {
		var x = CreateEl("b");
		x.className = cn + i;
		x.style.backgroundColor = color;
		if (bc)
			x.style.borderColor = bc;
		d.appendChild(x);
	}
	el.style.paddingTop = 0;
	el.insertBefore(d, el.firstChild);
}

function AddBottom(el, bk, color, bc, cn) {
	var i, lim = 4, d = CreateEl("b");

	if (cn.indexOf("s") >= 0)
		lim = 2;
	if (bc)
		d.className = "artop";
	else
		d.className = "rtop";
	d.style.backgroundColor = bk;
	for (i = lim; i > 0; i--) {
		var x = CreateEl("b");
		x.className = cn + i;
		x.style.backgroundColor = color;
		if (bc)
			x.style.borderColor = bc;
		d.appendChild(x);
	}
	el.style.paddingBottom = 0;
	el.appendChild(d);
}

function CreateEl(x) {
	if (isXHTML)
		return (document.createElementNS('http://www.w3.org/1999/xhtml', x));
	else
		return (document.createElement(x));
}

function getElementsBySelector(selector) {
	var i, selid = "", selclass = "", tag = selector, f, s = [], objlist = [];

	if (selector.indexOf(" ") > 0) { // descendant selector like "tag#id tag"
		s = selector.split(" ");
		var fs = s[0].split("#");
		if (fs.length == 1)
			return (objlist);
		f = document.getElementById(fs[1]);
		if (f)
			return (f.getElementsByTagName(s[1]));
		return (objlist);
	}
	if (selector.indexOf("#") > 0) { // id selector like "tag#id"
		s = selector.split("#");
		tag = s[0];
		selid = s[1];
	}
	if (selid != "") {
		f = document.getElementById(selid);
		if (f)
			objlist.push(f);
		return (objlist);
	}
	if (selector.indexOf(".") > 0) { // class selector like "tag.class"
		s = selector.split(".");
		tag = s[0];
		selclass = s[1];
	}
	var v = document.getElementsByTagName(tag); // tag selector like "tag"
	if (selclass == "")
		return (v);
	for (i = 0; i < v.length; i++) {
		if (v[i].className.indexOf(selclass) >= 0) {
			objlist.push(v[i]);
		}
	}
	return (objlist);
}

function Mix(c1, c2) {
	var i, step1, step2, x, y, r = new Array(3);
	if (c1.length == 4)
		step1 = 1;
	else
		step1 = 2;
	if (c2.length == 4)
		step2 = 1;
	else
		step2 = 2;
	for (i = 0; i < 3; i++) {
		x = parseInt(c1.substr(1 + step1 * i, step1), 16);
		if (step1 == 1)
			x = 16 * x + x;
		y = parseInt(c2.substr(1 + step2 * i, step2), 16);
		if (step2 == 1)
			y = 16 * y + y;
		r[i] = Math.floor((x * 50 + y * 50) / 100);
	}
	return ("#" + r[0].toString(16) + r[1].toString(16) + r[2].toString(16));
}