#boxWho #whowrapper li a {
background:url(http://f8.wretch.yimg.com/miss983734/10/1378846406.jpg
) no-repeat;margin-left:5px;}
#boxWho #whowrapper li a img {
filter:alpha(opacity=0);}
#boxWho #whowrapper li a:hover img {
filter:alpha(opacity=100);width:50px;height:50px;}