JS最简单的弹出窗口效果
<!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>JS最简单的弹出窗口效果http://www.ok22.org</title> <style type="text/css"> html,body{font-size:12px;margin:0px;height:100%;} #BOX_overlay {background:#666;left:0;position:absolute;top:0;z-index:100;}/**遮罩层的样式**/ #layer_box {background:#fff;border:3px solid #000;position:absolute;display:none;z-index:999;width:600px;} /**弹出窗口的样式**/ .box_title {background:#FFF;border-bottom:1px solid #DDD;margin:10px 10px 0;padding:0 0 5px 20px;} /**关闭栏目**/ .box_title span {font-size:14px;font-weight:bold;} .box_title a {color:#000;position:absolute;right:10px;top:10px;} .box_content{padding:10px;margin:10px;} </style> <script> function BOX_show(e,a)//显示 { if (document.getElementById(e) == null) { return; } //if (!a) { // var selects = document.getElementsByTagName("select"); // for (i = 0; i < selects.length; i++) { // selects[i].style.visibility = "hidden"; // } //} BOX_layout(e); window.onresize = function() { BOX_layout(e); } //改变窗体重新调整位置 window.onscroll = function() { BOX_layout(e); } //滚动窗体重新调整位置 document.onkeyup = function(event) { var evt = window.event || event; var code = evt.keyCode ? evt.keyCode : evt.which; //alert(code); if (code == 27) { BOX_remove(e); } } } function BOX_remove(e)//移除 { window.onscroll = null; window.onresize = null; document.getElementById("BOX_overlay").style.display = "none"; document.getElementById(e).style.display = "none"; //var selects = document.getElementsByTagName("select"); //for (i = 0; i < selects.length; i++) { // selects[i].style.visibility = "visible"; //} } function BOX_layout(e)//调整位置 { var a = document.getElementById(e); if (document.getElementById("BOX_overlay") == null)//判断是否新建遮掩层 { var overlay = document.createElement("div"); overlay.setAttribute("id", "BOX_overlay"); //overlay.onclick=function(){BOX_remove(e);}; //a.parentNode.appendChild(overlay); document.body.appendChild(overlay); } document.getElementById("BOX_overlay").style.cssText="filter:alpha(opacity=0);-moz-opacity:0;opacity:0;" showBackground(document.getElementById("BOX_overlay"),50) document.getElementById("BOX_overlay").ondblclick = function() { BOX_remove(e); }; //取客户端左上坐标，宽，高 var scrollLeft = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft); var scrollTop = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop); var clientWidth; if (window.innerWidth) { clientWidth = window.innerWidth; //clientWidth = ((Sys.Browser.agent === Sys.Browser.Safari) ? window.innerWidth : Math.min(window.innerWidth, document.documentElement.clientWidth)); } else { clientWidth = document.documentElement.clientWidth; } var clientHeight; if (window.innerHeight) { clientHeight = window.innerHeight; //clientHeight = ((Sys.Browser.agent === Sys.Browser.Safari) ? window.innerHeight : Math.min(window.innerHeight, document.documentElement.clientHeight)); } else { clientHeight = document.documentElement.clientHeight; } var bo = document.getElementById("BOX_overlay"); bo.style.left = scrollLeft + "px"; bo.style.top = scrollTop + "px"; bo.style.width ="100%"; bo.style.height = clientHeight + "px"; bo.style.display =""; //Popup窗口定位 a.style.display = "block" a.style.left = scrollLeft + ((clientWidth - a.offsetWidth) / 2) + "px"; a.style.top = scrollTop + ((clientHeight - a.offsetHeight) / 2) + "px"; } function showBackground(obj,endInt) { var isIe=(document.all)?true:false; if(isIe) { obj.filters.alpha.opacity+=2; if(obj.filters.alpha.opacity<endInt) { setTimeout(function(){showBackground(obj,endInt)},5); //alert(obj.filters.alpha.opacity); } }else { var al=parseFloat(obj.style.opacity);al+=0.01; obj.style.opacity=al; if(al<(endInt/100)) {setTimeout(function(){showBackground(obj,endInt)},5);} } } </script> </head> <body> <a href="javascript:BOX_show('layer_box');">点击弹出窗口</a> <div id="layer_box"> <div class="box_title"><span>弹出窗口标题</span><a onclick="BOX_remove('layer_box')" href="javascript:void(0)">关闭</a></div> <div class="box_content">弹出窗口内容</div> </div> </body> </html>
出处:http://www.ok22.org/art_detail.aspx?id=189
弹出窗口标题关闭
弹出窗口内容