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++) {
		var o = v[i];
		
		// element color change
		o.style.backgroundColor = color;
		
		// move paddingLR
		var d = CreateEl('div');
		d.style.paddingLeft  = getActiveStyle(o, 'padding-left');
		d.style.paddingRight = getActiveStyle(o, 'padding-right');
		o.style.paddingLeft  = '0px';
		o.style.paddingRight = '0px';
		o.style.borderLeftWidth   = '0px';
		o.style.borderRightWidth  = '0px';
		o.style.borderTopWidth    = '0px';
		o.style.borderBottomWidth = '0px';
		d.innerHTML = o.innerHTML;
		o.innerHTML = "";
		o.appendChild(d);
		//alert(o.innerHTML);
		
		
		if (edges) AddBorder(o,ecolor);
		if (t) AddTop(o,bk,color,ecolor,prefixt);
		if (b) AddBottom(o,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));
}

// currentStyle || getComputedStyle
function getActiveStyle( element, property, pseudo ) {
	if(element.currentStyle) {          //IE
		property = ( property.match( /-/ ) ) ? property.camelize() : property;
		return element.currentStyle[ property.camelize() ];
	} else if( document.defaultView.getComputedStyle ) {    //Mozilla
		property = (property.indexOf("-")>=0) ? property.deCamelize() : property;
		return document.defaultView.getComputedStyle(element, pseudo).getPropertyValue( property );
	} else {
		return "";
	}
}

String.prototype.camelize = function( ) {
	return this.replace( /-([a-z])/g,
		function( $0, $1 ) { return $1.toUpperCase( ) } );
}
String.prototype.deCamelize = function( ) {
	return this.replace( /[A-Z]/g,
		function( $0 ) { return "-" + $0.toLowerCase( ) } );
}