 <!-- 
var how_many_ads; 
function showexchangead()
{
var a,b,c,d,e,f,g,h,i,j,k;//定义广告项目

a="<a href='http://www.linkwan.com/gb/link/gotoAdv.asp?AdvId=125' target='_blank'><img src='http://www.linkwan.com/gb/images/home.gif' border=0 width=468 height=60  alt='世界网络'></a> ";

//中国IT实验室
b="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=385' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2006-8-7.gif' border=0 width=468 height=60  alt='中国IT实验室'></a>  ";

c="<a href='http://www.linkwan.com/gb/link/gotoAdv.asp?AdvId=124' target='_blank'><img src='http://www.linkwan.com/gb/advertise/uploadimages/2004-8-10_1.GIF' border=0 width=468 height=60  alt='大中华印艺网-中华印刷之光'></a>  ";

d="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=140' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2004-8-16_1.GIF' border=0 width=468 height=60  alt='IP地址查询－世界网络'></a> "

e="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=166' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2004-9-19.gif' border=0 width=468 height=60  alt='资讯网络'></a> ";

f="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=555' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2009-5-31_1.jpg' border=0 width=468 height=60  alt='互联互通'></a> ";

//ieshow
h="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=542' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2009-3-19.gif' border=0 width=468 height=60  alt='网第'></a> ";

//太阳网广告
i="<embed src=http://www.linkwan.com/gb/images/uploadimages/2010-2-9.swf quality=high  type='application/x-shockwave-flash' width=468 height=60></embed>";

//2000fun
k="<a href='http://www.linkwan.com/gb/link/goto.asp?Id=308' target='_blank'><img src='http://www.linkwan.com/gb/images/uploadimages/2005-11-9_3.GIF' border=0 width=468 height=60  alt='2000fun'></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。
var exchangead= new initArray(b,d,e,k,h,i,f);
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
{
ad +=1;
document.write('<div align="center">');
document.write('  <center>');
document.write('  <table border="0" width="100%" height="60" cellpadding="0" ');
document.write('    <tr>');
document.write('      <td valign="middle"><p align="center">'+exchangead[ad]+'</td>');
//+'<script language=javascript src=http://ip.linkwan.com/systeminfo.asp?OnlyAddress=center ><'+'/script>'
document.write('   </tr>');
document.write('  </table>');
document.write('  </center>');
document.write('</div>');
}
}

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();

//-->