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));
}