<!--全屏开始--><!--interstitial begin-->
<SCRIPT language=JavaScript>
<!--
//时间计算
SYfullscreen=false;
today=new Date();
function testdate()
{
if(today.getMonth()=='2') //是否为3月
{
if(today.getDate()=='15') //是否为15日
{
<!--725A3E8355CB-->//全屏开始
if(today.getHours()>='14' && today.getHours()<'15')
{
adInterPath='http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html?
http://sina.allyes.com/main/adfclick?
db=sina&bid=73474,105318,105433&cid=0,0,0&sid=97875&advid=3716&camid=14291&show=ignore&url=http://61.49.38.5/tzhddoc/index.ht
m${}/upload/2007315152115702.jpg';SYfullscreen=true
}<!--$$ huiyan/2007-3-15 14:00:01 ~ 2007-3-15 14:59:59/B $-->
<!--4774607C08FD-->//全屏开始
if(today.getHours()>='8' && today.getHours()<'9')
{
adInterPath='http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html?
http://sina.allyes.com/main/adfclick?
db=sina&bid=73474,105318,105433&cid=0,0,0&sid=97875&advid=3716&camid=14291&show=ignore&url=http://61.49.38.5/tzhddoc/index.ht
m${}/upload/2007315152115903.JPG';SYfullscreen=true
}<!--$$ raowei/2007-3-15 ~ 2007-3-16 两天勿撤，谢谢！/B $-->
<!--35F6B37FB5E4-->//全屏开始
if(today.getHours()>='16' && today.getHours()<'17')
{
adInterPath='http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html?
http://sina.allyes.com/main/adfclick?
db=sina&bid=70483,101960,102064&cid=0,0,0&sid=94712&advid=3254&camid=13506&show=ignore&url=http://www.sagitar.com.cn/${}
/upload/2007315152115985.GIF';SYfullscreen=true
}<!--$$ limeng/2007-3-15 16:00:01 ~ 2007-3-15 16:59:59/B $-->
<!--C5EB1D51E54C-->//全屏开始
if(today.getHours()>='17' && today.getHours()<'18')
{
adInterPath='http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html?
http://sina.allyes.com/main/adfclick?
db=sina&bid=73214,104975,105088&cid=0,0,0&sid=97562&advid=3705&camid=14237&show=ignore&url=http://adclient.dentsu.com.cn/html
.ng/adspec=Flash&adtype=single_dui_lian&affiliate=sina&campaignid=842&channel=aoyun_page&log=0¶ms.styles=clickcmd?${}
/upload/2007315152115273.jpg';SYfullscreen=true
}<!--$$ limeng/2007-3-15 17:00:01 ~ 2007-3-15 17:59:59/B $-->
<!--D4C112442CAF-->//全屏开始
if(today.getHours()>='18' && today.getHours()<'19')
{
adInterPath='http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html?
http://sina.allyes.com/main/adfclick?
db=sina&bid=73271,105059,105175&cid=0,0,0&sid=97643&advid=3254&camid=14234&show=ignore&url=http://www.sagitar.com.cn/olympic$
{}/upload/2007315152115162.jpg';SYfullscreen=true
}<!--$$ limeng/2007-3-15 ~ 2007-3-15/B $-->
}}}
testdate();
var MSIE=navigator.userAgent.indexOf("MSIE");
var OPER=navigator.userAgent.indexOf("Opera");
if(SYfullscreen==true)
{
if (document.all && MSIE!=-1 && OPER==-1) {
// this is a 4.x browser, no?
function changediv(){
document.getElementById('hiddenLayer').style.display = "block";
document.getElementById('interstitialFrame').src = adInterPath;
setTimeout("hidediv()",5000)
}
function hidediv(){
document.getElementById('hiddenLayer').style.display="none";
SYtag=2;
}
function showfull(){
setTimeout("changediv()",2000);
}
showfull();
}
}
// -->
</SCRIPT>
<SCRIPT language=JavaScript>
<!--
if(SYfullscreen==true)
{
if (document.all && MSIE!=-1 && OPER==-1) {
// this is a 4.x browser, no?
document.write('<DIV ID="hiddenLayer" style="display: none; height: 450px;">');
expandableIframe = '<IFRAME id="interstitialframe" width=750 HEIGHT=450 NORESIZE SCROLLING=No FRAMEBORDER=0
MARGINHEIGHT=0 MARGINWIDTH=0></IFRAME>';
document.write(expandableIframe);
}
document.write('</div>');
}
// -->
</SCRIPT>
<!--interstitial end--><!--全屏结束-->
说明新浪主要是根据时间段来显示不同的广告,然后将动态控制iframe来显示广告
有个重要的文件
http://ad4.sina.com.cn/sina/ae/ad_src/fullscreen/fullscreenv2.html
的代码如下,用${}作为分割符,利用了数组

ary[0]为连接地址
ary[1]为图片地址

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