用層模擬下拉菜單(JS下拉菜單)

<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>MENU TEST</title>
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
 if(v=='show')
    {
       //alert(document.all(obj.id+'_25175').href);
    var pos=GetObjPos(document.all(obj.id+'_K'));
       //alert(pos.x);
       obj.style.left=pos.x;
       obj.style.top=pos.y+26;
    }
 if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
//-->
</script>
<script type="text/javascript">
function CPos(x, y)
{
    this.x = x;
    this.y = y;
}
//獲取控件的位置
function GetObjPos(ATarget)
{
    var target = ATarget;
    var pos = new CPos(target.offsetLeft, target.offsetTop);
   
    var target = target.offsetParent;
    while (target)
    {
        pos.x += target.offsetLeft;
        pos.y += target.offsetTop;
       
        target = target.offsetParent
    }
   
    return pos;
}
</script>
</head>

<body>
<div id="menu1" style="position:absolute; left:14px; top:114px; width:200; height:150; z-index:1; visibility: hidden;" onMouseOver="MM_showHideLayers('menu1','','show')" onMouseOut="MM_showHideLayers('menu1','','hide')">
  <table width="200" height="150"  border="0" cellpadding="5" cellspacing="1" bgcolor="#C4EAFF">
    <tr>
      <td valign="top" bgcolor="#FFFFFF">
   <p><a href="#">0000000000000000</a></p>
      <p>2222222222</p>
      <p>3333333333333333</p>
      <p>44444444444444444</p></td>
    </tr>
  </table>
</div>
<table width="960" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td width="21"><img src="/images/2-2_05.jpg" width="21" height="31" alt="" /></td>
        <td background="/images/2-2_06.jpg"><div align="center"><strong>
  <a href="#">首頁</a>&nbsp;|&nbsp;
  <a id="menu1_K" name="menu1_K" onMouseOver="MM_showHideLayers('menu1','','show')" href="#">公司簡介</a>&nbsp;|&nbsp;
  <a href="#">信息專欄</a>&nbsp;|&nbsp;
  <a href="#">對外交流</a>
  </strong></div></td>
        <td width="17"><img src="/images/2-2_08.jpg" width="17" height="31" alt="" /></td>
      </tr>
</table>
</body>
</html>

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