我在正常的页面中打开一个iframe弹出窗(该弹出窗是则罩层效果),iframe中有很多select当我滚动其滚动条时,里面的select不停的被遮盖,这是什么原因啊<iframe style="width:100%;height:100%;border="0" frameborder="0">
<html>
<head></head>
<body>
<table>
<tr><td><select name="CertificateName3" id="CertificateName3"><option selected="selected" value="0">请选择证件</option></select></td></tr>
<tr><td><select name="CertificateName4" id="CertificateName4"><option selected="selected" value="0">请选择证件</option></select></td></tr>
<tr><td><select name="CertificateName5" id="CertificateName5"><option selected="selected" value="0">请选择证件</option></select></td></tr>
</table>
</body>
</html>
</iframe>
<html>
<head></head>
<body>
<table>
<tr><td><select name="CertificateName3" id="CertificateName3"><option selected="selected" value="0">请选择证件</option></select></td></tr>
<tr><td><select name="CertificateName4" id="CertificateName4"><option selected="selected" value="0">请选择证件</option></select></td></tr>
<tr><td><select name="CertificateName5" id="CertificateName5"><option selected="selected" value="0">请选择证件</option></select></td></tr>
</table>
</body>
</html>
</iframe>
$(window).scroll(function()
{
$('#frameid').hide().show();
});