/* ############## rounded corner trickery by Alessandro Fulciniti
taken from http://www.html.it/articoli/nifty/index.html
NiftyCheck and Rounded are run in pub/xyz/js/pub.js
*/
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);
}
/*
selector: div element
wich: corners to round: "all" or "top", "bottom", 
		"tl","tr","br","bl" (b=bottom,t=top,l=left,r=right)
bk: background color, "transparent" or a color "#00000"
color: foreground color
opt: options, example: "border #666666","smooth", "small"
*/
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);
		v[i].parentNode.style.width = ((i==l-1)?(100/l-2):(100/l))+"%";
	}
}
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));
}