现在注册关闭
<script type="text/javascript"> var myAlert = document.getElementById("alert"); var myMask=document.getElementById('mask'); var reg = document.getElementById("content").getElementsByTagName("a")[0]; var mClose = document.getElementById("close"); reg.onclick = function() { myMask.style.display="block"; myAlert.style.display = "block"; myAlert.style.position = "absolute"; myAlert.style.top = "50%"; myAlert.style.left = "50%"; myAlert.style.marginTop = "-75px"; myAlert.style.marginLeft = "-150px"; document.body.style.overflow = "hidden"; } mClose.onclick = function() { myAlert.style.display = "none"; myMask.style.display = "none"; } 《script》