function NiftyCheck()
{
  if(!document.getElementById || !document.createElement)
    return(false);
  var b=navigator.userAgent.toLowerCase();
  if(b.indexOf("msie 5")>0 && b.indexOf("opera")==-1)
    return(false);
  return(true);
}

function Rounded(selector,bk,color,size)
{
  var i;
  var v=getElementsBySelector(selector);
  var l=v.length;
  for(i=0;i<l;i++){
    AddTop(v[i],bk,color,size);
    AddBottom(v[i],bk,color,size);
  }
}

function RoundedTop(selector,bk,color,size)
{
  var i;
  var v=getElementsBySelector(selector);
  for(i=0;i<v.length;i++)
    AddTop(v[i],bk,color,size);
}

function RoundedBottom(selector,bk,color,size)
{
  var i;
  var v=getElementsBySelector(selector);
  for(i=0;i<v.length;i++)
    AddBottom(v[i],bk,color,size);
}

function AddTop(el,bk,color,size)
{
  var i;
  var d=document.createElement("b");
  var cn="r";
  var lim=4;
  if(size && size=="small")
  { cn="rs"; lim=2}
  d.className="rtop";
  d.style.backgroundColor=bk;
  for(i=1;i<=lim;i++)
  {
    var x=document.createElement("b");
    x.className=cn + i;
    x.style.backgroundColor=color;
    d.appendChild(x);
  }
  el.insertBefore(d,el.firstChild);
}

function AddBottom(el,bk,color,size)
{
  var i;
  var d=document.createElement("b");
  var cn="r";
  var lim=4;
  if(size && size=="small")
  { cn="rs"; lim=2}
  d.className="rbottom";
  d.style.backgroundColor=bk;
  for(i=lim;i>0;i--)
  {
    var x=document.createElement("b");
    x.className=cn + i;
    x.style.backgroundColor=color;
    d.appendChild(x);
  }
  el.appendChild(d,el.firstChild);
}

function getElementsBySelector(selector)
{
  var i;
  var s=[];
  var selid="";
  var selclass="";
  var tag=selector;
  var 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);
    return(document.getElementById(fs[1]).getElementsByTagName(s[1]));
  }
  if(selector.indexOf("#")>0) { //id selector like "tag#id"
    s=selector.split("#");
    tag=s[0];
    selid=s[1];
  }
  if(selid!="") {
    objlist.push(document.getElementById(selid));
    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==selclass) {
        objlist.push(v[i]);
    }
  }
  return(objlist);
}