Recommend JS to implement product classification to search bar friendly prompts (human-computer interaction)

<title>方框移动</title>
<center> <div  style="position: absolute; width: 46px; height: 20px; border: 1px solid #000000 ; display: none">rerererer</div> <table style="border: 1px solid #666666" cellspacing="1" bgcolor="#ff1111" cellpadding="4" border="0"><tr bgcolor="#ffffff">
<td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">爱老虎油</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">野火寒烟 </td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">剑气凌人</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">火焰楼兰</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">萧萧小雨</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">筷子一根</td> </tr></table>
<table  style="border: 1px solid #666666 ; width: 227px; height: 300px;"><tr>
<td></td> </tr></table>
<table style="border: 1px solid #666666" cellspacing="1" bgcolor="#ff1111" cellpadding="4" border="0"><tr bgcolor="#ffffff">
<td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">心灵鼓手</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">心开风神 </td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">中国丫头 </td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">波比娃娃</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">乱世狂闪</td>     <td onclick="setSource(this);function(){MyMar=setInterval(move,speed)}">红心男孩</td> </tr></table>
</center>

[Ctrl+A Select all Note:Introducing external Js requires refreshing the page before execution]

principle:
pixelTop and offsetTop are different, pixelTop is actually a digital form. And offsetTop is the actual offset of the object.

At the beginning, the top of this fk object is undefined and undefined, so pixelTop is 0, and offsetTop is actually the margin value because of the existence of the margin of the body instead of 0.

If you have read the menu code of the pj that I modified, you will also see a similar hack for the original pixelTop:
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