    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);
    }