以下是flash 的广告,,那个高手能说一下我要设置换广告时间,在那里设
<a target=_self href="javascript:goUrl()">
<span class="f14b">
<script type="text/javascript">
imgUrl1="http://www.webjx.com/img/200406301.jpg";
imgtext1="网页教学网制作素材"
imgLink1=escape("http://www.webjx.com/htmldata/sort/8.html");
imgUrl2="http://www.webjx.com/img/200406302.jpg";
imgtext2="网页教学网网页制作专区"
imgLink2=escape("http://www.webjx.com/htmldata/sort/3.html");
imgUrl3="http://www.webjx.com/img/200406303.jpg";
imgtext3="网页教学网网页特效专区"
imgLink3=escape("http://www.webjx.com/htmldata/sort/5.html");
imgUrl4="http://www.webjx.com/img/200406304.jpg";
imgtext4="网页教学网视频教程"
imgLink4=escape("http://www.webjx.com/htmldata/sort/15.html");
imgUrl5="http://www.webjx.com/img/200406305.jpg";
imgtext5="网页教学网网页制作书籍"
imgLink5=escape("http://www.webjx.com/htmldata/sort/7.html");
imgUrl6="http://www.webjx.com/img/200406305.jpg";
imgtext6="网页教学网网页制作书籍"
imgLink6=escape("http://www.webjx.com/htmldata/sort/7.html");
var focus_width=280
var focus_height=158
var text_height=18
var swf_height = focus_height+text_height

var pics=imgUrl1+"|"+imgUrl2+"|"+imgUrl3+"|"+imgUrl4+"|"+imgUrl5+"|"+imgUrl6
var links=imgLink1+"|"+imgLink2+"|"+imgLink3+"|"+imgLink4+"|"+imgLink5+"|"+imgLink6
var texts=imgtext1+"|"+imgtext2+"|"+imgtext3+"|"+imgtext4+"|"+imgtext5+"|"+imgtext6

document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="" width="'+ focus_width +'" height="'+ swf_height +'">');
document.write('<param name="allowScriptAccess" value="sameDomain"><param name="movie" value="http://www.webjx.com/js/focus.swf"><param name="quality" value="high"><param name="bgcolor" value="#F0F0F0">');
document.write('<param name="menu" value="false"><param name=wmode value="opaque">');
document.write('<param name="FlashVars" value="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'">');
document.write('<embed src="pixviewer.swf" wmode="opaque" FlashVars="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'" menu="false" bgcolor="#F0F0F0" quality="high" width="'+ focus_width +'" height="'+ focus_height +'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />'); document.write('</object>');

</script>
</span></a><span id=focustext class=f14b> </span>