JavaScript可移动弹出层

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点击按钮弹出层，兼容FF/IE7的可移动弹出层，弹出层可以移动，可以删除。(点击按钮，页面变灰，处于失效状态) 并把所有select标签捉住–将select设为隐藏（也可以隐藏页面所以元素），关闭弹出层select再显示出来，代码里有注释。（需要不通的效果可以根据自己需要修改）

<!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>兼容FF/IE的可移动弹出层</title><style type="text/css"> .button1 {background: #ebebeb; border: 1px solid #888888; color:#333333; font-family: Arial, Helvetica, sans-serif; font-size: 12px; height:23px; cursor:pointer } </style> <script language="javascript"> function alertWin(title, msg, w, h){ var s=document.getElementsByTagName("select"); //--------------把所有select标签捉住 for(var j=0;j<s.length;j++){s[j].style.display="none";} //--------------设为不显示，再进行下面操作 var titleheight = "20px"; // 提示窗口标题高度 var bordercolor = "#666699"; // 提示窗口的边框颜色 var titlecolor = "#FFFFFF"; // 提示窗口的标题颜色 var titlebgcolor = "#1d5798"; // 提示窗口的标题背景色 var bgcolor = "#FFFFFF"; // 提示内容的背景色 var iWidth = document.documentElement.clientWidth; var iHeight = document.documentElement.clientHeight; var bgObj = document.createElement("div"); bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:"+iWidth+"px;height:"+Math.max(document.body.clientHeight, iHeight)+"px;filter:Alpha(Opacity=10);opacity:0.1;background-color:#000000;z-index:101;"; document.body.appendChild(bgObj); var msgObj=document.createElement("div"); msgObj.style.cssText = "position:absolute;font:11px '宋体';top:"+(iHeight-h)/2+"px;left:"+(iWidth-w) /2+"px;width:"+w+"px;height:"+h+"px;text-align:center;border:1px solid "+bordercolor+";background-color:"+bgcolor+";padding:1px;line-height:22px;z-index:102;"; document.body.appendChild(msgObj); var table = document.createElement("table"); msgObj.appendChild(table); table.style.cssText = "margin:0px;border:0px;padding:0px;"; table.cellSpacing = 0; var tr = table.insertRow(-1); var titleBar = tr.insertCell(-1); titleBar.style.cssText = "width:100%;height:"+titleheight+"px;text-align:left;padding:3px;margin:0px;font:bold 13px '宋体';color:"+titlecolor+";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor; titleBar.style.paddingLeft = "10px"; titleBar.innerHTML = title; var moveX = 0; var moveY = 0; var moveTop = 0; var moveLeft = 0; var moveable = false; var docMouseMoveEvent = document.onmousemove; var docMouseUpEvent = document.onmouseup; titleBar.onmousedown = function() { var evt = getEvent(); moveable = true; moveX = evt.clientX; moveY = evt.clientY; moveTop = parseInt(msgObj.style.top); moveLeft = parseInt(msgObj.style.left); document.onmousemove = function() { if (moveable) { var evt = getEvent(); var x = moveLeft + evt.clientX - moveX; var y = moveTop + evt.clientY - moveY; if ( x > 0 &&( x + w < iWidth) && y > 0 && (y + h < iHeight) ) { msgObj.style.left = x + "px"; msgObj.style.top = y + "px"; } } }; document.onmouseup = function () { if (moveable) { document.onmousemove = docMouseMoveEvent; document.onmouseup = docMouseUpEvent; moveable = false; moveX = 0; moveY = 0; moveTop = 0; moveLeft = 0; } }; } var closeBtn = tr.insertCell(-1); closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor; closeBtn.innerHTML = "<span style='font-size:15pt; color:"+titlecolor+";'>×</span>"; closeBtn.onclick = function(){ for(var j=0;j<s.length;j++){s[j].style.display="";} //--------------再给select显出来 document.body.removeChild(bgObj); document.body.removeChild(msgObj); } var msgBox = table.insertRow(-1).insertCell(-1); msgBox.style.cssText = "font:10pt '宋体';"; msgBox.colSpan = 2; msg="<table><tr><td><form id=form1 action=''>用户名<input type='text' name='textfield' />密码<input type='text' name='textfield2' /></label></form></td></tr><table>"; msgBox.innerHTML = msg; // 获得事件Event对象，用于兼容IE和FireFox function getEvent() { return window.event || arguments.callee.caller.arguments[0]; } } </script> </head> <body> <input type="button" value=" 点这里 " onclick="alertWin('标题','这里是内容，弹出层可以移动，弹出层可以关闭',600,150);" /> <select name="select" style="width: 150px"> <option value="1">雅思考试</option> <option value="2">托福考试</option> <option value="3">SAT考试</option> <option value="4">GMAT考试</option> </select> </body> </html>

提示：你可以先修改部分代码再运行。

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姚迎迎，生于 1985年3月2日，江苏大丰人士。修行于福州大学软件学院

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