<td id="backGroundTd" background="xx.jpg" onMouseOver="BackGroundRep();" onMouseOut="BackGroundUnRep();">Test BackGround Reply</td>
-----------Js--------------------function BackGroundRep(){  document.getElementById("backGroundTd").style.background-repeat="repeat";}function BackGroundUnRep(){  document.getElementById("backGroundTd").style.background-repeat="no-repeat";}---------End-------------------
就这样.手打的,,可能有字母大小写的错误没有纠正,自己改改就好!!