<!--
var how_many_ads; 
function showexchangead()
{
var a,b,c,d,f,g;//定义广告项目

a="<a href='http://edu.nseac.com/union/nseac/xm/' target='_blank' ><img src='http://edu.nseac.com/gg/img/xm960_50.jpg' border=0 width=960 height=60></a> ";

b="<a href='http://edu.nseac.com/union/nseac/ydy/jh/' target='_blank' ><img src='http://edu.nseac.com/gg/img/jh960_60.gif' border=0 width=960 height=60></a> ";

//c="<a href='http://edu.nseac.com/union/nseac/ydy/' target='_blank' ><img src='http://edu.nseac.com/gg/img/jrbj960_50.gif' border=0 width=960 height=60></a> ";
c="<a title='精华在线' href='http://www.jinghua.com/agent/checksource.jsp?source=nseac' target='_blank' ><img src='http://edu.nseac.com/gg/img/jhzx960_60.jpg' border=0 width=960 height=60></a> ";

d="<a href='http://edu.nseac.com/union/nseac/jrjx/' target='_blank' ><img src='http://edu.nseac.com/gg/img/jrjx960_60.jpg' border=0 width=960 height=60></a> ";

//e="<a href='http://edu.nseac.com/union/nseac/kmx/' target='_blank' ><img src='http://edu.nseac.com/gg/img/kmx960_60.jpg' border=0 width=960 height=60></a> ";

f="<a href='http://edu.nseac.com/union/nseac/ydy/jingrui/jingrui/' target='_blank' ><img src='http://edu.nseac.com/gg/img/jrqg960_60.jpg' border=0 width=960 height=60></a> ";

//启德留学 出国培训
g="<a href='http://edu.nseac.com/union/nseac/qide/' target='_blank' ><img src='http://edu.nseac.com/gg/img/qide960_50.gif' border=0 width=960 height=60></a> ";

//i="<a href='http://edu.nseac.com/union/nseac/shxd/' target='_blank' ><img src='http://edu.nseac.com/gg/img/shxd960_60.jpg' border=0 width=960 height=60></a> ";
//备用
//j="<a href='http://edu.nseac.com/union/nseac/jrjx/' target='_blank' ><img src='http://edu.nseac.com/gg/img/jrjx960_60.jpg' border=0 width=960 height=60></a> ";
//<a href='http://edu.nseac.com/union/nseac/zy/' target='_blank' ><img src='http://edu.nseac.com/gg/img/zy960_60.jpg' border=0 width=960 height=60></a>


//初始化广告列表，列表项随机显示，项目重复则出现率增加。。。js比cms自带的好管理
var exchangead= new initArray(a,b,c,d,f,g); //在这放你要显示的定义广告
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
{
ad +=1;
document.write(exchangead[ad]);
}
}

function initArray() {
how_many_ads=this.length = initArray.arguments.length
      for (var i = 0; i < this.length; i++)
      this[i+1] = initArray.arguments[i]
}
showexchangead();
//-->

