彩色关键词怎么实现？

Query实现彩色云标签

一、JS Code：

<script type="text/javascript">
    $(function () {
        randomCloudLabel();
    });
    function randomCloudLabel() {
        var obj = $("#CloudLabel a");
        function rand(num) {
            return parseInt(Math.random() * num + 1);
        }
        function randomcolor() {
            var str = Math.ceil(Math.random() * 16777215).toString(16);
            if (str.length < 6) {
                str = "0" + str;
            }
            return str;
        }
        for (len = obj.length, i = len; i--; ) {
            obj[i].style.left = rand(600) + "px";
            obj[i].style.top = rand(400) + "px";
            obj[i].className = "color" + rand(5);
            obj[i].style.zIndex = rand(5);
            obj[i].style.fontSize = rand(50) + 12 + "px";
            obj[i].style.color = "#" + randomcolor();
        }
    }
</script>

二、Html Code

        <div id="CloudLabel">
            <a href="#">web标准学习</a><a href="#">css</a> <a href="#">javascript</a><a href="#">html5</a>
            <a href="#">canvas</a><a href="#">video</a> <a href="#">audio</a><a href="#">jQuery</a>
            <a href="#">jQuerymobile</a><a href="#">flash</a> <a href="#">firefox</a><a href="#">chrome</a>
            <a href="#">opera</a><a href="#">IE9</a> <a href="#">css3.0</a><a href="#">andriod</a>
            <a href="#">apple</a><a href="#">google</a><a href="#">jobs</a>
        </div>