一个层的问题

Question

那就用不普通的吧！
将以下代码复制到一个html文件试一下，会有意外收获（绝非广告）
 <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);
//-->
</script>
 <div id="Layer1" style="position:absolute; left:122px; top:11px; width:235px; height:156px; z-index:1"><iframe width="100%" height="100%"></iframe></div>
<object id="Flash" codebase="http://active.macromedia.com/flash2/cabs/swflash.cab#version=4,0,0,0" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="404" height="70">
  <param name="_cx" value="10689">
  <param name="_cy" value="1852">
  <param name="Movie" value="Flash.swf">
  <param name="Src" value="Flash.swf">
  <param name="WMode" value="Window">
  <param name="Play" value="-1">
  <param name="Loop" value="-1">
  <param name="Quality" value="High">
  <param name="SAlign" value>
  <param name="Menu" value="-1">
  <param name="Base" value>
  <param name="Scale" value="ShowAll">
  <param name="DeviceFont" value="0">
  <param name="EmbedMovie" value="0">
  <param name="BGColor" value="000000">
  <param name="SWRemote" value>
  <param name="Stacking" value="below">
  <embed src="Flash.swf" quality="high" bgcolor="#000000" width="404" height="70" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></embed> 
</object>