js动态创建popup

来源：互联网发布：膝盖不好怎么练腿知乎编辑：程序博客网时间：2024/05/25 20:01
原文链接 : js的Popup效果
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title></title><STYLE>   #login{     position: relative;     display: none;         top: 20px;         left: 30px;         background-color: #ffffff;         text-align: center;         border: solid 1px;         padding: 10px;         z-index: 1;   }  </STYLE><script  type="text/javascript">var W = screen.width;//取得屏幕分辨率宽度var H = screen.height;//取得屏幕分辨率高度function M(id){    return document.getElementById(id);//用M()方法代替document.getElementById(id)}function MC(t){   return document.createElement(t);//用MC()方法代替document.createElement(t)};//判断浏览器是否为IEfunction isIE(){      return (document.all && window.ActiveXObject && !window.opera) ? true : false;}//取得页面的高宽function getBodySize(){   var bodySize = [];   with(document.documentElement) {    bodySize[0] = (scrollWidth>clientWidth)?scrollWidth:clientWidth;//如果滚动条的宽度大于页面的宽度，取得滚动条的宽度，否则取页面宽度    bodySize[1] = (scrollHeight>clientHeight)?scrollHeight:clientHeight;//如果滚动条的高度大于页面的高度，取得滚动条的高度，否则取高度   }   return bodySize;}//创建遮盖层function popCoverDiv(){   if (M("cover_div")) {   //如果存在遮盖层，则让其显示    M("cover_div").style.display = 'block';   } else {   //否则创建遮盖层    var coverDiv = MC('div');    document.body.appendChild(coverDiv);    coverDiv.id = 'cover_div';    with(coverDiv.style) {     position = 'absolute';     background = '#CCCCCC';     left = '0px';     top = '0px';     var bodySize = getBodySize();     width = bodySize[0] + 'px'     height = bodySize[1] + 'px';     zIndex = 0;     if (isIE()) {      filter = "Alpha(Opacity=60)";//IE逆境     } else {      opacity = 0.6;     }    }   }}//让登陆层显示为块    function showLogin()    {                var login=M("login");            login.style.display = "block";        }//设置DIV层的样式function change(){          var login = M("login");      login.style.position = "absolute";      login.style.border = "1px solid #CCCCCC";      login.style.background ="#F6F6F6";      var i=0;          var bodySize = getBodySize();      login.style.left = (bodySize[0]-i*i*4)/2+"px";      login.style.top = (bodySize[1]/2-100-i*i)+"px";      login.style.width =      i*i*4 + "px";      login.style.height = i*i*1.5 + "px";          popChange(i);}//让DIV层大小循环增大function popChange(i){      var login = M("login");          var bodySize = getBodySize();      login.style.left = (bodySize[0]-i*i*4)/2+"px";      login.style.top = (bodySize[1]/2-100-i*i)+"px";      login.style.width =      i*i*4 + "px";      login.style.height = i*i*1.5+ "px";      if(i<=10){           i++;           setTimeout("popChange("+i+")",10);//设置超时10毫秒      }}//打开DIV层function openLiuzm(){        change();        showLogin();        popCoverDiv()        void(0);//不进行任何操作,如：<a href="#">aaa</a>}//关闭DIV层function close(){         M('login').style.display = 'none';         M("cover_div").style.display = 'none';        void(0);}</script></head><body>   <input type="button" onclick="javascript:openLiuzm();" value="注册用户" />   <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>   <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>asdfsadfsdf<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>   <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><div id="login">  <span>欢迎登陆liuzm博客</span>   <div id="panel">   <lable>用户名: </lable><input type="text" size="20" value="www.liuzm.com"/>   <lable>密码: </lable><input type="password" size="20">   </div>   <input type="button" value="提交" />   <a href="javascript:close();">关闭</a>  </div></body></html>
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