/*
 * 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);