全屏广告代码疑问

<!--首页巨幅FLASH广告.定时关闭-->
<OBJECT codeBase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0
      height=350 width=980 classid=clsid27CDB6E-AE6D-11cf-96B8-444553540000><ARAM NAME="movie" VALUE="http://bato.cn/ad/wy760x350.swf"><ARAM NAME="quality" VALUE="high">
       <EMBED src="http://bato.cn/ad/wy760x350.swf" quality=high WIDTH="980"
      HEIGHT="350" TYPE="application/x-shockwave-flash"
      PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></EMBED>
      </OBJECT></DIV>
      <SCRIPT language=JavaScript>
var thisTime = setTimeout("document.getElementById('outwin').style.display='block';",8);
var thisTime = setTimeout("document.getElementById('outwin').style.display='none';",14);
</SCRIPT>
<!--首页巨幅FLASH广告.定时关闭-->

放到首页 什么位置比较好啊~

还有

var thisTime = setTimeout("document.getElementById('outwin').style.display='block';",8);
var thisTime = setTimeout("document.getElementById('outwin').style.display='none';",14);

这里的时间 分别是表示什么时间啊~~