代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><script language="javascript"> var docEle = function() { return document.getElementById(arguments[0]) || false; } function openNewDiv(_id) { var m = "mask"; if (docEle(_id)) document.removeChild(docEle(_id)); if (docEle(m)) document.removeChild(docEle(m)); // 新激活图层 var newDiv = document.createElement("div"); newDiv.id = _id; newDiv.style.position = "absolute"; newDiv.style.zIndex = "9999"; newDiv.style.width = "500px"; newDiv.style.height = "300px"; newDiv.style.top = "50px"; newDiv.style.left = (parseInt(document.body.scrollWidth) - 300) / 2 + "px"; // 屏幕居中 newDiv.style.background = "#EFEFEF"; newDiv.style.border = "1px solid #860001"; newDiv.style.padding = "5px"; newDiv.innerHTML = "新激活图层内容 "; document.body.appendChild(newDiv); // mask图层 var newMask = document.createElement("div"); newMask.id = m; newMask.style.position = "absolute"; newMask.style.zIndex = "1"; newMask.style.width = document.body.scrollWidth + "px"; newMask.style.height = document.body.scrollHeight + "px"; newMask.style.top = "0px"; newMask.style.left = "0px"; newMask.style.background = "#000"; newMask.style.filter = "alpha(opacity=40)"; newMask.style.opacity = "0.40"; document.body.appendChild(newMask); // 关闭mask和新图层 var newA = document.createElement("a"); newA.href = "#"; newA.innerHTML = "X"; newA.onclick = function() { document.body.removeChild(docEle(_id)); document.body.removeChild(docEle(m)); return false; } newDiv.appendChild(newA); } </script> <body> <a href="#" onclick="openNewDiv('newDiv');return false;">激活新层</a> <p> 网页内容网页内容网页内容</p> <p>网页内容网页内容网页内容</p> </body>