旧的Javascript下拉菜单在Chrome或IE 11中不起作用

我正在使用一个非常旧的网站，客户希望在javascript菜单上放置一个在Chrome或IE 11.xxxx中不起作用的绷带

我在Chrome中进行了故障排除，得到了很多“参考错误（术语）未定义”的消息，我解决了这些问题。错误消失了，但菜单仍然不起作用

<TR>
    <TD width="89" height="28"><a href="index.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image22','','images/home/new/home_on.jpg',1)"><img src="images/home/new/home_on.JPG" name="Image22" width="86" height="28" border="0"></a></TD>
    <TD width="11"><img src="images/home/new/dot_1.jpg" width="11" height="28"></TD>
    <TD width="59"><img src="images/home/new/delivery_off.jpg" width="72" height="28" name="menu0" id="menu0" onMouseOver="showMenu(event)" onMouseOut="hideMenu(event)"></TD>            
    <TD width="10"><IMG src="images/home/new/dot_3.jpg" width="10" height="28"></TD>
    <TD width="154"><img src="images/home/new/products_profitability_off.jpg" width="86" height="28" name="menu2" id="menu2" onMouseOver="showMenu(event)" onMouseOut="hideMenu(event)"></TD>
    <TD width="10"><IMG src="images/home/new/dot_2.jpg" width="10" height="28"></TD>
    <TD width="67"><img src="images/home/new/research_off.jpg" width="86" height="28" name="menu1" id="menu1" onMouseOver="showMenu(event)" onMouseOut="hideMenu(event)"></TD>
    <TD width="10"><IMG src="images/home/new/dot_4.jpg" width="10" height="28"></TD>
    <TD width="102"><img src="images/home/new/brand_strategy_off.jpg" width="75" height="28" name="menu3" id="menu3" onMouseOver="showMenu(event)" onMouseOut="hideMenu(event)"></TD>
    <TD width="10"><IMG src="images/home/new/dot_5.jpg" width="10" height="28"></TD>
    <TD width="64"><img src="images/home/new/software_off.jpg" width="94" height="28" name="menu4" id="menu4" onMouseOver="showMenu(event)" onMouseOut="hideMenu(event)"></TD>
    <TD width="9"><IMG src="images/home/dot6.jpg" width="9" height="28"></TD>
    <TD width="76"><a href="bancology.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image23','','images/home/new/bancology_on.jpg',1)"><img src="images/home/new/bancology_off.jpg" name="Image23" width="98" height="28" border="0"></a></TD>
    <TD width="10"><IMG src="images/home/dot7.jpg" width="10" height="28"></TD>
    <TD width="71"><a href="news.html" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image24','','images/home/new/news_on.jpg',1)"><img src="images/home/new/news_off.jpg" name="Image24" width="85" height="28" border="0"></a></TD>
  </TR>

aaah good ol'

MM\u veryLongMethodNames

-好久不见了！这些菜单是用Macromedia Dreamweaver创建的，它们不适用于现代浏览器也就不足为奇了——它是在IE6还很现代的时候编写的！你为什么不发布JavaScript？老实说，我不知道发布什么。该文件引用了三个.js文件-然后在脚本文件夹中有.js文件，这些文件可以追溯到netscape