function NiftyCheck(){
if(!document.getElementById || !document.createElement) return(false);
var b=navigator.userAgent.toLowerCase();
if(b.indexOf("msie 5")>0 && b.indexOf("opera")==-1) return(false);
return(true);
}

function Rounded(selector,bk,color,size){
var i;
var v=getElementsBySelector(selector);
var l=v.length;
for(i=0;i<l;i++){AddTop(v[i],bk,color,size); AddBottom(v[i],bk,color,size);}
}

function RoundedTop(selector,bk,color,size){
var i;
var v=getElementsBySelector(selector);
for(i=0;i<v.length;i++) AddTop(v[i],bk,color,size);
}

function RoundedBottom(selector,bk,color,size){
var i;
var v=getElementsBySelector(selector);
for(i=0;i<v.length;i++) AddBottom(v[i],bk,color,size);
}

function AddTop(el,bk,color,size){
var i;
var d=document.createElement("b");
var cn="r";
var lim=4;
if(size && size=="small"){cn="rs"; lim=2;}
d.className="rtop";
d.style.backgroundColor=bk;
for(i=1;i<=lim;i++){
	var x=document.createElement("b");
	x.className=cn + i;
	x.style.backgroundColor=color;
	d.appendChild(x);
}
el.insertBefore(d,el.firstChild);
}

function AddBottom(el,bk,color,size){
var i;
var d=document.createElement("b");
var cn="r";
var lim=4;
if(size && size=="small"){cn="rs"; lim=2;}
d.className="rbottom";
d.style.backgroundColor=bk;
for(i=lim;i>0;i--){
	var x=document.createElement("b");
	x.className=cn + i;
	x.style.backgroundColor=color;
	d.appendChild(x);
}
el.appendChild(d,el.firstChild);
}

function getElementsBySelector(selector){
var i;
var s=[];
var selid="";
var selclass="";
var tag=selector;
var 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);
	return(document.getElementById(fs[1]).getElementsByTagName(s[1]));
}
if(selector.indexOf("#")>0){ //id selector like "tag#id"
	s=selector.split("#");
	tag=s[0];
	selid=s[1];
}
if(selid!=""){
	objlist.push(document.getElementById(selid));
	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==selclass){
		objlist.push(v[i]);
	}
}
return(objlist);
}