jQuery - How do I get this to start automatically on page load

<!--In the head--> 
<script src="../js/jquery-1.7.min.js" type="text/javascript"></script>
<script src="../js/superfish.js" type="text/javascript"></script>
<script type="text/javascript" src="js/jquery.imagecube.js"></script>
<script type="text/javascript">
$(document).ready(function() { 
        $('#menu ul').superfish({ 
            delay:       100,                            // one second delay on mouseout 
            animation:   {opacity:'show',height:'show'},  // fade-in and slide-down animation 
            speed:       'fast',                          // faster animation speed 
            autoArrows:  false,                           // disable generation of arrow mark-up 
            dropShadows: false                            // disable drop shadows 
        });
       $('#selectionCube').imagecube({imagePath: 'img/', direction: 'random', speed: '1000', pause:'0'}).imagecube('stop');
       $('#selectionCube').click(startcube);
}); 

function startcube() {
       $('#selectionCube').imagecube('start');
       $('#selectionCube').imagecube('change','pause','6000');
}
</script>

<!--In the body-->
<div class="placeholder" id="selectionCube">
<img alt="" src="../images/cube1.jpg" title="Cube1" />
<img alt="" src="../images/cube2.gif" title="Cube2" />
<img alt="" src="../images/cube3.gif" title="Cube3" />
<img alt="" src="../images/cube4.gif" title="Cube4" />
<img alt="" src="../images/cube5.gif" title="Cube5" />
<img alt="" src="../images/cube6.gif" title="Cube6" />
<img alt="" src="../images/cube7.gif" title="Cube7" />
<img alt="" src="../images/cube8.gif" title="Cube8" />
<img alt="" src="../images/cube9.gif" title="Cube9" />
</div>

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