鼠标经过、移出、点击命令

<td id="ht1" class="on" style="text-align:center;" mce_style="text-align:center;" width="86" height="32" onMouseOver="this.className='on';" onMouseOut="this.className='off';"> <div οnclick="MenuClick(1)" style=" cursor:pointer;" mce_style=" cursor:pointer;" >在线洽谈</div> </td>