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一个很通用的javascript的下拉菜单

这是css文件css.css的内容

.close{
  visibility:hidden;
  cellPadding=0; cellSpacing=0 ;
  height:21px;font:9pt;text-align:center
 
   }
.open{
  visibility:visible;
  cellPadding=0; cellSpacing=0 ;
  height:24px;font:9pt;text-align:center;
  BORDER-TOP: #000000 1px solid;
  BORDER-BOTTOM: #000000 1px solid

   }
.openleft{
  visibility:visible;
  cellPadding=0; cellSpacing=0 ;
  height:24px;font:9pt;text-align:center;
  BORDER-TOP: #000000 1px solid;
  BORDER-LEFT:#000000 1px solid ;
  BORDER-BOTTOM: #000000 1px solid
  }
.openright{
  visibility:visible;
  cellPadding=0; cellSpacing=0 ;
  height:24px;font:9pt;text-align:center;
  BORDER-TOP: #000000 1px solid ;
  BORDER-RIGHT:#000000 1px solid ;
  BORDER-BOTTOM: #000000 1px solid
  }

利用鼠标对象和表格的属性很容易实现下拉菜单!

<HTML><HEAD><TITLE>最后还是笑笑/情感</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<LINK href="CssFiles/css.css"  type=text/css rel=stylesheet>
<BODY bgColor=#dedfde leftMargin=0 marginwidth="0" topmargin="0">

<TABLE  cellPadding=0 cellSpacing=0  class=bian>
  
    <TR >
   <TD valign="top" align=center >
   <table class=close 
     ;
     cellpadding="0" cellspacing="0">
     <tr>
     <td valign="center" title="本人本站的介绍" background="pic/back.jpg" height=23 class=openleft><a href='#'> 笑 笑</a></td>
     </tr>
              <tr>
       <td valign="center" background="pic/back2.jpg"><a href="bzjs.html"  target="_blank">本 站</a></td>
     </tr>
     <tr>
       <td valign="center" background="pic/back2.jpg"><a href="grjj.html"  target="_blank">本 人</a></td>
     </tr>
     <tr>
       <td valign="center" background="pic/back2.jpg"><a href="jl.html"  target="_blank">简 历</a></td>
     </tr>    
     </table>

</TD></TR>

</TABLE>

</BODY>

</HTML>