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25、浮动顶层的菜单A

====1、将以下代码加入HTML的<head></head>之间: <SCRIPT LANGUAGE="JavaScript"> <!-- Begin function setVariables() { if (navigator.appName == "Netscape") { v=".top="; dS="document."; sD=""; y="window.pageYOffset"; } else { v=".pixelTop="; dS=""; sD=".style"; y="document.body.scrollTop"; } } function checkLocation() { object="object1"; yy=eval(y); eval(dS+object+sD+v+yy); setTimeout("checkLocation()",10); } // End --> </script> ====2、将以下代码加入HTML的<body></body>之间: <BODY OnLoad="setVariables();checkLocation()"> <div id="object1" style="position:absolute; visibility:show; left:0px; top:0px; z-index:2"> <table width=128 border=0 cellspacing=20 cellpadding=0> <tr> <td height="97"><a href="地址1.htm"><img src="图片1.gif" width="105" height="21" border="0">
</a><br> <a href="地址2.htm"><img src="图片2.gif" width="105" height="21" border="0"></a><br> <a href="地址3.htm"><img src="图片3.gif" width="105" height="21" border="0"></a><br> <a href="地址4.htm"><img src="图片4.gif" width="105" height="21" border="0"></a> </td> </tr> </table> </div></BODY>