jQuery小疑点，让字体闪烁

//2、让字体闪烁jQuery.fn.flash=function(color, duration){    var current=this.css('color');    this.animate({color: 'rgb('+color+')'}, duration / 2);    this.animate({color: current}, duration / 2);}$('#someid').flash('255,0,0', 1000);

/* * 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);