分享javascript來對html編碼和解碼

    /**    *htmlEncode編碼    */    function htmlEncode(str) {        var s = "";        if (str.length == 0) return "";        s = str.replace(/&/g, "&amp;");        s = s.replace(/</g, "&lt;");        s = s.replace(/>/g, "&gt;");        s = s.replace(/\'/g, "&#39;");        s = s.replace(/\"/g, "&quot;");        return s;    }    /**    *htmlDecode解碼    */    function htmlDecode(str) {        var s = "";        if (str.length == 0) return "";        s = str.replace(/&amp;/g, "&");        s = s.replace(/&lt;/g, "<");        s = s.replace(/&gt;/g, ">");        s = s.replace(/&#39;/g, "\'");        s = s.replace(/&quot;/g, "\"");        return s;    }