Wrap text around relative positioned div

I have a square div that is housing a javascript image slideshow. I incorporated a caption into the slideshow which requires the containing div to be position:relative. I then want text to wrap around this slideshow... is this possible?

My pseudo structure:

<div position:relative>
  <div slideshow stuff>
    <div position:absolute>Caption</div>
  </div>
</div>

How can I wrap text around this?