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];
  }
  // tag selector like "tag"
  var v = document.getElementsByTagName(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));
}