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));

}