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

(function ( jQuery )
{

   // 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 )];
      }

      // 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]
   };

})( jQuery );