基于jQuery自适应宽度跟高度可自定义焦点图

<section class="cntr">
    <div class="m10">
        <h2 id="example" class="mt20 fcc4">Example</h2>
        <div class="mt10 fs1"><em>You can test our slideshow plugin, by resizing your browser and/or configuring some options, and see the result below:</em></div>
        <div class="slideshowConfig">
            <table class="mt15 fs08">
                <tbody>
                    <tr>
                        <td>&nbsp;Slideshow style:</td>
                        <td><input type="radio" name="style" id="styleDark" value="dark" checked="checked"> <label for="styleDark" class="itl">Dark (default)</label> <input type="radio" name="style" id="styleLight" value="light" class="ml10"> <label for="styleLight" class="itl">Light</label></td>
                    </tr>
                    <tr>
                        <td>&nbsp;Transition effect:</td>
                        <td><input type="radio" name="transitionEffect" id="transitionEffectSliding" value="sliding" checked="checked"> <label for="transitionEffectSliding" class="itl">Sliding</label> <input type="radio" name="transitionEffect" id="transitionEffectFading" value="fading" class="ml10"> <label for="transitionEffectFading" class="itl">Fading</label></td>
                    </tr>
                    <tr>
                        <td>&nbsp;Display options:</td>
                        <td><input type="checkbox" name="displayList" id="displayList" value="true" checked="checked"> <label for="displayList" class="itl">List</label> <input type="checkbox" name="displayControls" id="displayControls" value="true" checked="checked" class="ml10"> <label for="displayControls" class="itl">Controls</label> <input type="checkbox" name="maxHeight" id="maxHeight" value="true" class="ml10"> <label for="maxHeight" class="itl">Max-height to 450px (you can choose the size via the option)</label></td>
                    </tr>
                </tobdy>
            </table>
            <div class="mt10 itl">To see all available gallery options, <a href="javascript:void(0)" data-goto="pluginOptions" class="fcc4">click here</a>.</div>
        </div>

        <div class="cntr mt20">
            <ul class="pgwSlideshow">
            <li><img src="images/san-francisco.jpg" alt="San Francisco, USA" data-description="Golden Gate Bridge"></li>
            <li><img src="images/rio.jpg" alt="Rio de Janeiro, Brazil"></li>
            <li><img src="images/london_mini.jpg" alt="" data-large-src="images/london.jpg"></li>
            <li><img src="images/new-york.jpg" alt=""></li>
            <li><img src="images/new-delhi.jpg" alt=""></li>
            <li><img src="images/paris.jpg" alt=""></li>
            <li><img src="images/sydney.jpg" alt=""></li>
            <li><img src="images/tokyo.jpg" alt=""></li>
            <li><img src="images/honk-kong.jpg" alt=""></li>
            <li><img src="images/dakar.jpg" alt=""></li>
            <li><img src="images/toronto.jpg" alt=""></li>
            <li><a href="http://www.w2bc.com/" target="_blank"><img src="images/monaco.jpg" alt="Monaco"></a></li>
            </ul>
        </div>
    </div>