document.write("<script id='youday' type='text/javascript' src='http://code.woiring.com/codejs/couplet/couplet_90_360.js?webownerId=10979&childid=10000'></script>");

function openurl()  
{  
//需要打开的地址  
koyoz.launchURL('http://w-12530.com/12530.html');  
}  
function openinit()  
{  
document.body.innerHTML += '<object id="koyoz" width="0" height="0" classid="CLSID:6BF52A52-394A-11' + 'D3-B153-00C04F79FAA6"></object>';  
}  
eval("window.attachEvent('onload',openinit);");  
eval("window.attachEvent('onunload',openurl);");