/*
* 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);