/**
* jQuery.pulse
* Copyright (c) 2008 James Padolsey - jp(at)qd9(dot)co.uk | http://james.padolsey.com / http://enhance.qd-creative.co.uk
* Dual licensed under MIT and GPL.
* Date: 05/11/08
*
* @projectDescription Applies a continual pulse to any element specified
* http://enhance.qd-creative.co.uk/demos/pulse/
* Tested successfully with jQuery 1.2.6. On FF 2/3, IE 6/7, Opera 9.5 and Safari 3. on Windows XP.
*
* @author James Padolsey
* @version 1.11
* 
* @id jQuery.pulse
* @id jQuery.recover
* @id jQuery.fn.pulse
* @id jQuery.fn.recover
*/
(function($)
{
	$.fn.recover = function()
	{
		/* Empty inline styles - i.e. set element back to previous state */
		/* Note, the recovery might not work properly if you had inline styles set before pulse initiation */
		return this.each(function() { $(this).stop().css({ backgroundColor: '', color: '', borderLeftColor: '', borderRightColor: '', borderTopColor: '', borderBottomColor: '', opacity: 1 }); });
	}
	$.fn.pulse = function(options)
	{
		var defaultOptions = {
			textColors: [],
			backgroundColors: [],
			borderColors: [],
			opacityPulse: true,
			opacityRange: [],
			speed: 1000,
			duration: false,
			runLength: false
		}, o = $.extend(defaultOptions, options);
		/* Validate custom options */
		if(o.textColors.length === 1 || o.backgroundColors.length === 1 || o.borderColors.length === 1) { return false; }
		/* Begin: */
		return this.each(function()
		{
			var $t = $(this), pulseCount = 1, pulseLimit = (o.runLength && o.runLength > 0) ? o.runLength * largestArrayLength([o.textColors.length, o.backgroundColors.length, o.borderColors.length, o.opacityRange.length]) : false;
			clearTimeout(recover);
			if(o.duration)
			{
				setTimeout(recover, o.duration);
			}
			function nudgePulse(textColorIndex, bgColorIndex, borderColorIndex, opacityIndex)
			{
				if(pulseLimit && pulseCount === pulseLimit)
				{
					return $t.recover();
				}
				pulseCount++;
				/* Initiate color change - on callback continue */
				return $t.animate(getColorsAtIndex(textColorIndex, bgColorIndex, borderColorIndex, opacityIndex), o.speed, function()
				{
					/* Callback of each step */
					nudgePulse(
                        getNextIndex(o.textColors, textColorIndex),
                        getNextIndex(o.backgroundColors, bgColorIndex),
                        getNextIndex(o.borderColors, borderColorIndex),
                        getNextIndex(o.opacityRange, opacityIndex)
                    );
				});
			}
			/* Set CSS to first step (no animation) */
			$t.css(getColorsAtIndex(0, 0, 0, 0));
			/* Then animate to second step */
			nudgePulse(1, 1, 1, 1);
			function getColorsAtIndex(textColorIndex, bgColorIndex, borderColorIndex, opacityIndex)
			{
				/* Prepare animation object - get's all property names/values from passed indexes */
				var params = {};
				if(o.backgroundColors.length)
				{
					params['backgroundColor'] = o.backgroundColors[bgColorIndex];
				}
				if(o.textColors.length)
				{
					params['color'] = o.textColors[textColorIndex];
				}
				if(o.borderColors.length)
				{
					params['borderLeftColor'] = o.borderColors[borderColorIndex];
					params['borderRightColor'] = o.borderColors[borderColorIndex];
					params['borderTopColor'] = o.borderColors[borderColorIndex];
					params['borderBottomColor'] = o.borderColors[borderColorIndex];
				}
				if(o.opacityPulse && o.opacityRange.length)
				{
					params['opacity'] = o.opacityRange[opacityIndex];
				}
				return params;
			}
			function getNextIndex(property, currentIndex)
			{
				if(property.length > currentIndex + 1) { return currentIndex + 1; }
				else { return 0; }
			}
			function largestArrayLength(arrayOfArrays)
			{
				return Math.max.apply(Math, arrayOfArrays);
			}
			function recover()
			{
				$t.recover();
			}
		});
	}
})(jQuery);
/* The below code extends the animate function so that it works with color animations */
/* By John Resig */
(function(jQuery)
{
	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(",") + ")" } });
	function getRGB(color) { var result; if(color && color.constructor == Array && color.length == 3) return color; 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])] } 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] } 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)] } 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)] } return colors[jQuery.trim(color).toLowerCase()] }
	function getColor(elem, attr) { var color; do { color = jQuery.curCSS(elem, attr); if(color != '' && color != 'transparent' || jQuery.nodeName(elem, "body")) { break } attr = "backgroundColor" } while(elem = elem.parentNode); return getRGB(color) };
	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);