js脚本实现登录界面始终保持在最上端
<body onload="goTop()">
function goTop() {
if (window.top != window.self) {
window.top.location = window.location;
} else if (window.top.dialogArguments) {
window.top.dialogArguments.location = window.location;
window.top.returnValue = false;
window.top.close();
}
}