/*

 * 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);