th.headerSortUp { 
    background-image: url(../tablesorter/desc.gif)!important; 
    background-color: #e0e0e0; 
} 

th.headerSortDown{ 
    background-image: url(../tablesorter/asc.gif)!important; 
    background-color: #e0e0e0; 
} 

th.header { 
    background-image: url(../tablesorter/bg.gif); 
    cursor: pointer; 
    font-weight: bold; 
    background-repeat: no-repeat; 
    background-position: center left; 
    padding-left: 20px; 
    margin-left: -1px; 
    border:1px solid #e0e0e0;
}