Am I too naive to suggest

Code:
<p><img onclick="this.src='http://www.josephdenaro.com/color/11-02s.jpg'"  

src="http://www.josephdenaro.com/color/11-01s.jpg" width="200" height="300"></p>

<p>&nbsp;</p>
<p><img onmouseover="this.src='http://www.josephdenaro.com/color/12-joe01.jpg'"  
onmouseout="this.src='http://www.josephdenaro.com/bw/11-scarfS.jpg'"
src="http://www.josephdenaro.com/color/11-09s.jpg" width="200" height="300"></p>