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);
}