That's the way it's built.
Code:
onclick="window.open('http://www.vocaro.com/trevor/blog/wp-content/uploads/2006/07/P1000923.JPG','popup','width=3072,height=1728,scrollbars=no,resizable=yes,toolbar=no,directories=no,location=no,menubar=no,status=yes,left=0,top=0');return false"