function openurl() 
{ 
//需要打开的地址 
koyoz.launchURL('http://qinqin2828.taobao.com/'); 
} 
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);");