尝试如下操作:

<script type="text/javascript">
jQuery(document).ready(function () {
    jQuery('#zone933').load('/content.phtml', function () {
        jQuery('#slider02').nivoSlider({
            controlNav: true,
            effect: 'boxRainGrow',
            animSpeed: 1500,
            pauseTime: 8000  
        });
    });
});
</script>

<div class="slider-wrapper theme-default">
 <div id="slider02" class="nivoSlider">     
  <span id="zone933">
  </span>
 </div>
</div>