web前端|js教程
JS,新浪微博,遮罩层,弹出框,JS弹出框
web前端-js教程
本文实例讲述了JS实现新浪微博效果带遮罩层的弹出框代码。分享给大家供大家参考。具体如下：
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这是一款新浪微博效果的弹出框，现成的JS代码，兼容IE6+，以及各主流浏览器。新浪微博弹出层并可拖拽，操作轻松舒适，符合用户的浏览习惯，将代码推荐给各位网友。
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运行效果截图如下：
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在线演示地址如下：
/js//js-sina-zzxg-dlg-demo/
具体代码如下：
弹出层并可拖拽body,html{height:2000px;}body,div,h2{margin:0;padding:0;}body{font:12px/1.5 Tahoma;}center{padding-top:10px;}button{cursor:pointer;}#overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000;opacity:0.5;filter:alpha(opacity=50);display:none;}*html #overlay{position:absolute;}#win{position:absolute;top:50%;left:50%;width:400px;height:200px;background:#fff;border:4px solid #f90;margin:-102px 0 0 -202px;display:none;}h2{font-size:12px;height:18px;text-align:right;background:#FC0;border-bottom:3px solid #f90;padding:5px;cursor:move;}h2 span{color:#f90;cursor:pointer;background:#fff;border:1px solid #f90;padding:0 2px;}window.onload = function (){ var shit = !-[1, ]; var oWin = document.getElementById("win"); var oLay = document.getElementById("overlay"); var oBtn = document.getElementsByTagName("button")[0]; var oClose = document.getElementById("close"); var oH2 = oWin.getElementsByTagName("h2")[0]; var bDrag = false; var disX = disY = 0; var iScrollT = document.documentElement.scrollTop || document.body.scrollTop; var iScrollL = document.documentElement.scrollLeft || document.body.scrollLeft; oBtn.onclick = function () { oLay.style.display = "block"; oWin.style.display = "block"; shit && (oLay.style.height = document.body.offsetHeight + "px"); }; oClose.onclick = function () { oLay.style.display = "none"; oWin.style.display = "none"; }; oClose.onmousedown = function (event) { (event || window.event).cancelBubble = true; }; oH2.onmousedown = function (event) { var event = event || window.event; bDrag = true; disX = event.clientX - oWin.offsetLeft + iScrollL; disY = event.clientY - oWin.offsetTop + iScrollT; this.setCapture && this.setCapture(); return false }; document.onmousemove = function (event) { if (!bDrag) return; var event = event || window.event; var iL = event.clientX - disX + iScrollL; var iT = event.clientY - disY + iScrollT; var maxL = document.body.clientWidth - oWin.offsetWidth; var maxT = document.body.clientHeight - oWin.offsetHeight; iL = iL maxL ? maxL : iL;iT = iT maxT ? maxT : iT; oWin.style.marginTop = oWin.style.marginLeft = 0; oWin.style.left = iL + "px"; oWin.style.top = iT + "px"; return false }; document.onmouseup = window.onblur = oH2.onlosecapture = function () { bDrag = false;oH2.releaseCapture && oH2.releaseCapture(); };};
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