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,invert=false;

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(color=="transparent"){
	cn=cn+"x";
	ecolor=bk;
	bk="transparent";
	}
else if(opt && opt.indexOf("smooth")>=0){
	cn+="a";
	ecolor=Mix(bk,color);
	}
if(opt && opt.indexOf("small")>=0) cn+="s";
if(opt && opt.indexOf("medium")>=0) cn+="m";
if(opt && opt.indexOf("invert")>=0) invert=true;
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(!invert){
			if(t) AddTop(v[i],bk,color,ecolor,prefixt);
			if(b) AddBottom(v[i],bk,color,ecolor,prefixb);
		}
		else
		{
			if(t) AddTopInverted(v[i],bk,color,ecolor,prefixt);
			if(b) AddBottomInverted(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(i==2 && cn.indexOf("m") >= 0 && cn.indexOf("a") >= 0) x.style.borderColor = Mix(bk,bc);
		else 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(i==2 && cn.indexOf("m") >= 0 && cn.indexOf("a") >= 0) x.style.borderColor = Mix(bk,bc);
		else if(bc) x.style.borderColor=bc;
		d.appendChild(x);
	}
	
//	el.style.paddingBottom=0;
	el.appendChild(d);
}

	
function AddTopInverted(el,bk,color,bc,cn){
	var i, lim = 3, d = CreateEl("b");
	
	if(cn.indexOf("s") >= 0) lim = 2;
	
	if(bc)
		d.className = "artop";
	else
		d.className = "rtop";
	
	d.style.backgroundColor = color;
	
	for(i=lim;i>0;i--){
		var x=CreateEl("b");
		x.className=cn + i;
		x.style.backgroundColor = bk;
		if(i==2 && cn.indexOf("m") >= 0 && cn.indexOf("a") >= 0) x.style.borderColor = Mix(color,bc);
		else if(bc) x.style.borderColor = bc;
		d.appendChild(x);
	}
/*	
	z = CreateEl("b");
	z.className = "artop";
	z.style.backgroundColor = "transparent";
	var x=CreateEl("b");
	x.className=cn + 4;
	x.style.backgroundColor = "transparent";
	x.style.borderColor = Mix(color,bc);
	z.appendChild(x);
	z.style.marginTop = "-1px";
*/
	
//	el.style.paddingTop = 0;
	el.insertBefore(d, el.firstChild);
//	el.insertBefore(z, el.firstChild);
}


function AddBottomInverted(el,bk,color,bc,cn){
	var i, lim = 3, d = CreateEl("b");
	
	if(cn.indexOf("s") >= 0) lim = 2;
	
	if(bc)
		d.className = "artop";
	else
		d.className = "rtop";
	
	d.style.backgroundColor = color;
	
	for(i=1;i<=lim;i++){
		var x=CreateEl("b");
		x.className=cn + i;
		x.style.backgroundColor=bk;
		if(i==2 && cn.indexOf("m") >= 0 && cn.indexOf("a") >= 0) x.style.borderColor = Mix(color,bc);
		else if(bc) x.style.borderColor=bc;
		d.appendChild(x);
	}
	
/*
	z = CreateEl("b");
	z.className = "artop";
	z.style.backgroundColor = "transparent";
	var x=CreateEl("b");
	x.className=cn + 4;
	x.style.backgroundColor = "transparent";
	x.style.borderColor = Mix(color,bc);
	z.appendChild(x);
	z.style.marginBottom = "-1px";
*/
	
//	el.style.paddingBottom=0;
	el.appendChild(d);
//	el.appendChild(z);
}


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));
}