求助：请大家帮我找一下这样的收放式菜单代码。

<html>
<head>
<title>控制左菜单显隐</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" type="text/css" href="/inc/style.css"><script language="JavaScript">var LEFT_MENU_VIEW=0;function leftmenu_open()
{
   LEFT_MENU_VIEW=0;
   leftmenu_ctrl();
}function leftmenu_ctrl()
{
   if(LEFT_MENU_VIEW==0)
   {
      parent.frame2.cols="200,8,*";
      LEFT_MENU_VIEW=1;
      myarrow.src="/images/menu/arrow_l.gif";
   }
   else
   {
      parent.frame2.cols="0,8,*";
      LEFT_MENU_VIEW=0;
      myarrow.src="/images/menu/arrow_r.gif";
   }
}function setPointer(theRow, thePointerColor)
{
    if (typeof(theRow.style) == 'undefined' || typeof(theRow.cells) == 'undefined')
    {
        return false;
    }    var row_cells_cnt=theRow.cells.length;
    for (var c = 0; c < row_cells_cnt; c++)
    {
        theRow.cells[c].bgColor = thePointerColor;
    }    return true;
}</script>
</head><body topmargin="0" leftmargin="0" onload="leftmenu_ctrl()"> <TABLE cellspacing="0" width="100%" height="100%" cellpadding="0" align="center" background="/images/bg_blue.gif">
   <TR>
     <TD>
       <TABLE cellspacing="0" width="100%" height="50" bgcolor="#EEEEEE" border="1" bordercolorlight="#000000" bordercolordark="#FFFFFF" cellpadding="0">
         <TR onclick="leftmenu_ctrl()" onmouseover="setPointer(this, '#D3E5FF')" onmouseout="setPointer(this, '#EEEEEE')">
           <TD style="cursor:hand">
           <img id="myarrow" src="/images/menu/arrow_l.gif" >
           </TD>
           </TR>
         </TABLE>
     </TD>
   </TR>
 </TABLE></body>
</html>