<inbut type=button onclick=aa()>
<script>
function aa()
{
window.open(url);
window.opener=null;
window.close();
}
</script>
<script>
function aa()
{
window.open(url);
window.opener=null;
window.close();
}
</script>
<script>
function aa()
{
window.open(url);
self.close();
}
</script>
<input onClick="document.all.WebBrowser.ExecWB(45,1);window.open('about:blank')" type=button value=关闭>