String.prototype.find = function(str)
    {
        return ((this.indexOf(str) >= 0) ? true : false);
    }

function Nifty(selector, options)
{        
    var v = selector.split(","), h = 0;

    if (options == null) 
        options = "";

    if (options.find("fixed-height"))
        h = getElementsBySelector(v[0])[0].offsetHeight;

    for (var i = 0; i < v.length; i++)
        Rounded(v[i], options);
        
    if (options.find("height")) 
        SameHeight(selector, h);
}

function Rounded(selector,options)
{
    var top = "", bottom = "", v = new Array();

    if (options != "")
    {
        options = options.replace("left", "tl bl");
        options = options.replace("right", "tr br");
        options = options.replace("top", "tr tl");
        options = options.replace("bottom", "br bl");
        options = options.replace("transparent", "alias");
        
        if (options.find("tl"))
        {
            top = "both";
        
            if (!options.find("tr")) 
                top="left";
        }
        else if (options.find("tr")) 
            top="right";
    
        if (options.find("bl"))
        {
            bottom = "both";
        
            if (!options.find("br")) 
                bottom="left";
        }
        else if (options.find("br")) 
            bottom = "right";
    }

    if (top == "" && bottom == "" && !options.find("none"))
    {
        top = "both";
        bottom = "both";
    }

    v = getElementsBySelector(selector);

    for (var i = 0; i < v.length; i++)
    {
        FixIE(v[i]);
    
        if (top != "") 
            AddTop(v[i], top, options);
    
        if (bottom != "") 
            AddBottom(v[i], bottom, options);
    }
}

function AddTop(el, side, options)
{
    var d = document.createElement("b"), lim = 4, border = "", p, btype = "r", bk, color;

    d.style.marginLeft = "-" + getPadding(el, "Left") + "px";
    d.style.marginRight = "-" + getPadding(el, "Right") + "px";

    if (options.find("alias") || (color = getBk(el)) == "transparent")
    {
        color = "transparent";
        bk = "transparent"; 
        border = getParentBk(el);
        btype = "t";
    }
    else
    {
        bk = getParentBk(el); 
        border = Mix(color, bk);
    }
    
    d.style.background = bk;
    d.className = "niftycube";
    p = getPadding(el, "Top");

    if (options.find("small"))
    {
        d.style.marginBottom = (p - 2) + "px";
        btype += "s"; 
        lim = 2;
    }
    else if (options.find("big"))
    {
        d.style.marginBottom = (p - 10) + "px";
        btype += "b"; 
        lim = 8;
    }
    else 
        d.style.marginBottom = (p - 5) + "px";

    for (var i = 1; i <= lim; i++)
        d.appendChild(CreateStrip(i, side, color, border, btype));

    el.style.paddingTop = "0";
    el.insertBefore(d, el.firstChild);
}

function AddBottom(el, side, options)
{
    var d = document.createElement("b"), lim = 4, border = "", p, btype = "r", bk, color;

    d.style.marginLeft = "-" + getPadding(el, "Left") + "px";
    d.style.marginRight = "-" + getPadding(el, "Right") + "px";

    if (options.find("alias") || (color = getBk(el)) == "transparent")
    {
        color = "transparent";
        bk = "transparent"; 
        border = getParentBk(el);
        btype = "t";
    }
    else
    {
        bk = getParentBk(el); 
        border = Mix(color, bk);
    }

    d.style.background = bk;
    d.className = "niftycube";
    p = getPadding(el, "Bottom");

    if (options.find("small"))
    {
        d.style.marginTop = (p - 2) + "px";
        btype += "s"; 
        lim = 2;
    }
    else if (options.find("big"))
    {
        d.style.marginTop = (p - 10) + "px";
        btype += "b"; 
        lim = 8;
    }
    else 
        d.style.marginTop = (p - 5) + "px";
        
    for (var i = lim; i > 0; i--)
        d.appendChild(CreateStrip(i, side, color, border, btype));

    el.style.paddingBottom = 0;
    el.appendChild(d);
}

function CreateStrip(index, side, color, border, btype)
{
    var x = document.createElement("b");
    
    x.className = btype + index;
    x.style.backgroundColor = color;
    x.style.borderColor = border;

    if (side == "left")
    {
        x.style.borderRightWidth = "0";
        x.style.marginRight = "0";
    }
    else if (side == "right")
    {
        x.style.borderLeftWidth = "0";
        x.style.marginLeft = "0";
    }

    return (x);
}

function FixIE(el)
{
    if (el.currentStyle != null && el.currentStyle.hasLayout != null && el.currentStyle.hasLayout == false)
        el.style.display = "inline-block";
}

function SameHeight(selector, maxh)
{
    var v = selector.split(","), t, els = [], gap;

    for (var i = 0; i < v.length; i++)
    {
        t = getElementsBySelector(v[i]);
        els = els.concat(t);
    }
    
    for (var i = 0; i < els.length; i++)
    {
        if (els[i].offsetHeight > maxh) 
            maxh = els[i].offsetHeight;
            
        els[i].style.height = "auto";
    }
    
    for (var i = 0; i < els.length; i++)
    {
        gap = maxh - els[i].offsetHeight;
    
        if (gap > 0)
        {
            t = document.createElement("b");
            t.className = "niftyfill";
            t.style.height = gap + "px";
            nc = els[i].lastChild;
        
            if (nc.className == "niftycube")
                els[i].insertBefore(t, nc);
            else 
                els[i].appendChild(t);
        }
    }
}

function getElementsBySelector(selector)
{
    var selid = "", selclass = "", tag = selector, tag2 = "", v2, f, a, s = [], objlist = [], c;

    if (selector.find("#")) // id selector like "tag#id"
    { 
        if (selector.find(" ")) // 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)
            {
                v = f.getElementsByTagName(s[1]);
            
                for (var i = 0; i < v.length; i++) 
                    objlist.push(v[i]);
            }
            
            return (objlist);
        }
        else
        {
            s = selector.split("#");
            tag = s[0];
            selid = s[1];
        
            if (selid != "")
            {
                f = document.getElementById(selid);
            
                if (f) 
                    objlist.push(f);
            
                return (objlist);
            }
        }
    }
    
    if (selector.find(".")) // class selector like "tag.class"
    {      
        s = selector.split(".");
        tag = s[0];
        selclass = s[1];
    
        if (selclass.find(" ")) // descendant selector like "tag1.classname tag2"
        {   
            s = selclass.split(" ");
            selclass = s[0];
            tag2 = s[1];
        }
    }
    
    var v = document.getElementsByTagName(tag);  // tag selector like "tag"

    if (selclass == "")
    {
        for (var i = 0; i < v.length; i++) 
            objlist.push(v[i]);
    
        return (objlist);
    }
    
    for (var i = 0; i < v.length; i++)
    {
        c = v[i].className.split(" ");
    
        for (var j = 0; j < c.length; j++)
        {
            if (c[j] == selclass)
            {
                if (tag2 == "") 
                    objlist.push(v[i]);
                else
                {
                    v2 = v[i].getElementsByTagName(tag2);
                
                    for (var k = 0; k < v2.length; k++) 
                        objlist.push(v2[k]);
                }
            }
        }
    }
    
    return(objlist);
}

function getParentBk(x)
{
    var el = x.parentNode, c;

    while (el.tagName.toUpperCase() != "HTML" && (c = getBk(el)) == "transparent")
        el = el.parentNode;
        
    if (c == "transparent") 
        c = "#FFFFFF";

    return (c);
}

function getBk(x)
{
    var c = getStyleProp(x, "backgroundColor");

    if (c == null || c == "transparent" || c.find("rgba(0, 0, 0, 0)"))
        return("transparent");

    if (c.find("rgb")) 
        c = rgb2hex(c);

    return (c);
}

function getPadding(x, side)
{
    var p = getStyleProp(x, "padding" + side);
    
    if (p==null || !p.find("px")) 
        return (0);

    return (parseInt(p));
}

function getStyleProp(x, prop)
{
    if (x.currentStyle)
        return (x.currentStyle[prop]);

    if (document.defaultView.getComputedStyle)
        return (document.defaultView.getComputedStyle(x, '')[prop]);

    return (null);
}

function rgb2hex(value)
{
    var hex = "", v, h;

    var regexp = /([0-9]+)[, ]+([0-9]+)[, ]+([0-9]+)/;

    var h = regexp.exec(value);

    for (var i = 1; i < 4; i++)
    {
        v = parseInt(h[i]).toString(16);
    
        if (v.length == 1) 
            hex += "0" + v;
        else 
            hex += v;
    }   
    
    return("#" + hex);
}

function Mix(c1, c2)
{
    var 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 (var 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);
        r[i] = r[i].toString(16);
    
        if (r[i].length == 1) 
            r[i] = "0" + r[i];
    }
    
    return ("#" + r[0] + r[1] + r[2]);
}