(function(jQuery) {
/*
 * jQuery Color Animations
 * Copyright 2007 John Resig
 * Released under the MIT and GPL licenses.
 */

// We override the animation for all of these color styles
jQuery.each(['backgroundColor', 'borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor', 'color', 'outlineColor'], function(i,attr){
    jQuery.fx.step[attr] = function(fx){
        if ( fx.state == 0 ) {
            fx.start = getColor( fx.elem, attr );
            fx.end = getRGB( fx.end );
        }

        fx.elem.style[attr] = "rgb(" + [
            Math.max(Math.min( parseInt((fx.pos * (fx.end[0] - fx.start[0])) + fx.start[0]), 255), 0),
            Math.max(Math.min( parseInt((fx.pos * (fx.end[1] - fx.start[1])) + fx.start[1]), 255), 0),
            Math.max(Math.min( parseInt((fx.pos * (fx.end[2] - fx.start[2])) + fx.start[2]), 255), 0)
        ].join(",") + ")";
    }
});

// Color Conversion functions from highlightFade
// By Blair Mitchelmore
// http://jquery.offput.ca/highlightFade/

// Parse strings looking for color tuples [255,255,255]
function getRGB(color) {
    var result;

    // Check if we're already dealing with an array of colors
    if ( color && color.constructor == Array && color.length == 3 )
        return color;

    // Look for rgb(num,num,num)
    if (result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(color))
        return [parseInt(result[1]), parseInt(result[2]), parseInt(result[3])];

    // Look for rgb(num%,num%,num%)
    if (result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(color))
        return [parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55];

    // Look for #a0b1c2
    if (result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(color))
        return [parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16)];

    // Look for #fff
    if (result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(color))
        return [parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16)];

    // Look for rgba(0, 0, 0, 0) == transparent in Safari 3
    if (result = /rgba\(0, 0, 0, 0\)/.exec(color))
        return colors['transparent']

    // Otherwise, we're most likely dealing with a named color
    return colors[jQuery.trim(color).toLowerCase()];
}

function getColor(elem, attr) {
    var color;

    do {
        color = jQuery.curCSS(elem, attr);

        // Keep going until we find an element that has color, or we hit the body
        if ( color != '' && color != 'transparent' || jQuery.nodeName(elem, "body") )
            break;

        attr = "backgroundColor";
    } while ( elem = elem.parentNode );

    return getRGB(color);
};

// Some named colors to work with
// From Interface by Stefan Petre
// http://interface.eyecon.ro/

var colors = {
  aqua:[0,255,255],
  azure:[240,255,255],
  beige:[245,245,220],
  black:[0,0,0],
  blue:[0,0,255],
  brown:[165,42,42],
  cyan:[0,255,255],
  darkblue:[0,0,139],
  darkcyan:[0,139,139],
  darkgrey:[169,169,169],
  darkgreen:[0,100,0],
  darkkhaki:[189,183,107],
  darkmagenta:[139,0,139],
  darkolivegreen:[85,107,47],
  darkorange:[255,140,0],
  darkorchid:[153,50,204],
  darkred:[139,0,0],
  darksalmon:[233,150,122],
  darkviolet:[148,0,211],
  fuchsia:[255,0,255],
  gold:[255,215,0],
  green:[0,128,0],
  indigo:[75,0,130],
  khaki:[240,230,140],
  lightblue:[173,216,230],
  lightcyan:[224,255,255],
  lightgreen:[144,238,144],
  lightgrey:[211,211,211],
  lightpink:[255,182,193],
  lightyellow:[255,255,224],
  lime:[0,255,0],
  magenta:[255,0,255],
  maroon:[128,0,0],
  navy:[0,0,128],
  olive:[128,128,0],
  orange:[255,165,0],
  pink:[255,192,203],
  purple:[128,0,128],
  violet:[128,0,128],
  red:[255,0,0],
  silver:[192,192,192],
  white:[255,255,255],
  yellow:[255,255,0],
  transparent: [255,255,255]
};
})(jQuery);