/******************************************************************************/
/****************************** COLOR ANIMATIONS ******************************/
/******************************************************************************/

// override the animation for color styles
jQuery.each(['backgroundColor', 'borderBottomColor', 'borderLeftColor',
	'borderRightColor', 'borderTopColor', 'borderColor', 'color', 'outlineColor'],
function(i, attr) {
	jQuery.fx.step[attr] = function(fx) {
		if (!fx.colorInit) {
			fx.start = getColor(fx.elem, attr);
			fx.end = getRGB(fx.end);
			fx.colorInit = true;
		}

		fx.elem.style[attr] = 'rgb(' +
			Math.max(Math.min(parseInt((fx.pos * (fx.end[0] - fx.start[0])) + fx.start[0], 10), 255), 0) + ',' +
			Math.max(Math.min(parseInt((fx.pos * (fx.end[1] - fx.start[1])) + fx.start[1], 10), 255), 0) + ',' +
			Math.max(Math.min(parseInt((fx.pos * (fx.end[2] - fx.start[2])) + fx.start[2], 10), 255), 0) + ')';
	};
});

// 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],10), parseInt(result[2],10), parseInt(result[3],10)];

		// 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);
};