<td> background color on mouseOver

function GreyON(change) {
document.getElementById(change).style.backgroundColor = "B9B9B9";
}

CSS wont work for me because i need to change multiple <td>'s on one mouseover. However the above script isnt working.

I also tried:

function GreyON(change) {
document.getElementById(change).className = "ThisClassON";
}

This did not work either. What can i do?

/me engages his psychic powers

I sense a problem with your code.