function mouseoverLeft() { 
document.getElementById("rollover-left").style.backgroundColor='#ebebeb'; 
} 
function mouseoutLeft() { 
document.getElementById("rollover-left").style.backgroundColor='#fff'; 
} 

function mouseoverCenter() { 
document.getElementById("rollover-center").style.backgroundColor='#ebebeb'; 
} 
function mouseoutCenter() { 
document.getElementById("rollover-center").style.backgroundColor='#fff'; 
} 

function mouseoverRight() { 
document.getElementById("rollover-right").style.backgroundColor='#ebebeb'; 
} 
function mouseoutRight() { 
document.getElementById("rollover-right").style.backgroundColor='#fff'; 
}