.SwapImg13px { 
display: block; 
height: 13px; 
background-repeat: no-repeat;
} 

.SwapImg13px:hover { 
background-position: 0 -13px; 
}


.SwapImg22px { 
display: block; 
height: 22px; 
width: 185px;
background-repeat: no-repeat;
} 

.SwapImg22px:hover { 
background-position: 0 -22px; 
}


.SwapImg26px { 
display: block; 
height: 26px; 
width: 185px;
background-repeat: no-repeat;
} 

.SwapImg26px:hover { 
background-position: 0 -26px; 
}


.SwapImg38px { 
display: block; 
height: 38px; 
width: 185px;
background-repeat: no-repeat;
} 

.SwapImg38px:hover { 
background-position: 0 -38px; 
}