/*
   Copyright 2005 Richard Matzinger
   RichardMatzinger.com
*/
var lastdescid = '';

function showlarge(thumb, bigimg, newsrc, caption, descid)
{
  document.images[bigimg].src=newsrc;
  document.images[bigimg].alt=thumb.alt;
  document.images[bigimg].title=thumb.alt;

  if (caption > "")
    { document.getElementById(caption).innerHTML=thumb.alt; }

  if (lastdescid > "")
    {  // hide previously displayed caption
      document.getElementById(lastdescid).style.display='none';
    }

  if (descid > "")
    {
      // make the new caption visible
      document.getElementById(descid).style.display='block';
    }
  // remember this caption
  lastdescid = descid;
}