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);
}