<form>
    <div id="demo" class="yui3-skin-sam">
        <div id="console"></div>

        <div class="filter-controls">
            <h4>Source filter</h4>
            <p>
                <select id="incexc">
                    <option value="logExclude" selected="selected">Exclude</option>
                    <option value="logInclude">Include</option>
                </select>
                <label for="filter_a"><input type="checkbox" name="src_filter" value="sourceA" id="filter_a"> <code>sourceA</code></label>
                <label for="filter_b"><input type="checkbox" name="src_filter" value="sourceB" id="filter_b"> <code>sourceB</code></label>
                <label for="filter_c"><input type="checkbox" name="src_filter" value="sourceC" id="filter_c" checked="checked"> <code>sourceC</code></label>
            </p>
        </div>

        <div class="filter-controls">
            <h4>Log level</h4>
            <p>
                <label for="lvl_info">
                    <input type="radio" name="log_level" id="lvl_info" value="info" checked="checked">
                    info
                </label>
                <label for="lvl_warn">
                    <input type="radio" name="log_level" id="lvl_warn" value="warn">
                    warn
                </label>
                <label for="lvl_error">
                    <input type="radio" name="log_level" id="lvl_error" value="error">
                    error
                </label>
            </p>
        </div>

        <div class="form">
            <h4>Log a message</h4>
            <div>
                <input type="text" id="msg" value="This is a log message!">
                <input type="submit" id="log">log message</button>

                <p>
                    Source:
                    <label for="msg_src_a">
                        <input type="radio" name="msg_src" id="msg_src_a" value="sourceA" checked="checked">
                        A
                    </label>
                    <label for="msg_src_b">
                        <input type="radio" name="msg_src" id="msg_src_b" value="sourceB">
                        B
                    </label>
                    <label for="msg_src_c">
                        <input type="radio" name="msg_src" id="msg_src_c" value="sourceC">
                        C
                    </label>

                    <span>Category:</span>
                    <label for="msg_info">
                        <input type="radio" name="msg_cat" id="msg_info" value="info" checked="checked">
                        info
                    </label>
                    <label for="msg_warn">
                        <input type="radio" name="msg_cat" id="msg_warn" value="warn">
                        warn
                    </label>
                    <label for="msg_error">
                        <input type="radio" name="msg_cat" id="msg_error" value="error">
                        error
                    </label>
                </p>
            </div>

            <h4>Code preview</h4>
            <pre id="preview">// YUI instance configuration
    var Y = YUI({
        "logLevel": "info",
        "logExclude": {
            "sourceC": true
        }
    });

    // Log statement
    Y.log(&quot;This is a log message!&quot;, &quot;info&quot;, &quot;sourceA&quot;);</pre>
        </div>
    </div>
</form>