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可以拖动的居中弹出层带遮罩效果

关键字：居中弹出拖动层弹出层

这个弹出层居中显示，可以拖动，带有背景遮罩效果。可以配置提示窗口标题高度、提示窗口的边框颜色、提示窗口的标题颜色等。

可以拖动的居中弹出层带遮罩效果

<!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>可以拖动的居中弹出层-懒人建站-51xuediannao.com</title>

<script language="javascript"> 
function alertWin(title, msg, w, h){ 
var titleheight = "22px"; //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 = "#666699"; 
var bgcolor = "#FFFFFF"; 
var iWidth = document.documentElement.clientWidth; 
var iHeight = document.documentElement.clientHeight; 
var bgObj = document.createElement("div"); 
bgObj.id = "BgDiv"; 
bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:"+iWidth+"px;height:"+Math.max(document.body.clientHeight, iHeight)+"px;filter:Alpha(Opacity=80);opacity:0.3;background-color:#000000;z-index:100;"; 
document.body.appendChild(bgObj); 
var msgObj=document.createElement("div"); 
msgObj.id = "MsgDiv"; 
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 mask = document.createElement("iframe");
mask.src="javascript:false";
mask.scrolling="no";
mask.frameborder="0";
mask.style.cssText = "position:absolute;z-index:"+msgObj.style.zIndex-1+";top:"+msgObj.style.top+";left:"+msgObj.style.left+";width:"+msgObj.style.width+";height:"+msgObj.style.height+";";
mask.style.position="absolute";
document.body.appendChild(mask);
var moveX = 0; 
var moveY = 0; 
var moveTop = 0; 
var moveLeft = 0; 
var moveable = false;
addEvent(msgObj, "mousedown", mousedown);
addEvent(msgObj, "mouseup", mouseup);
addEvent(msgObj, "selectstart", function() {return false;});
addEvent(msgObj, "mousemove", mousemove);
var resizeEvent;
function mousedown() { 
moveable = true; 
resizeEvent=window.onresize;
window.onresize = function() {
bgObj.style.width = document.documentElement.clientWidth + "px";
bgObj.style.height = documes3Qnt.documentElement.clientHeight + "px";
}
if (getBrowser()=="IE") msgObj.setCapture();
var evt = getEvent(); 
moveX = evt.clientX; 
moveY = evt.clientY; 
moveTop = parseInt(msgObj.style.top); 
moveLeft = parseInt(msgObj.style.left);
} 
function mousemove() {
if (moveable) { 
var evt = getEvent(); 
var x = moveLeft + evt.clientX - moveX; 
var y = moveTop + evt.clientY - moveY; 
msgObj.style.left = x + "px"; 
msgObj.style.top = y + "px"; 
mask.style.left = msgObj.style.left;
mask.style.top = msgObj.style.top;
} 
}
function mouseup() {
if (moveable) { 
moveX = 0; 
moveY = 0; 
moveTop = 0; 
moveLeft = 0; 
moveable = false; 
window.onresize = resizeEvent;
if (getBrowser()=="IE") msgObj.releaseCapture();
} 
}
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(){ 
document.body.removeChild(bgObj); 
document.body.removeChild(msgObj); 
document.body.removeChild(mask);
} 
var msgBox = table.insertRow(-1).insertCell(-1); 
msgBox.id = "MsgBox"; 
msgBox.style.cssText = "font:10pt '宋体';"; 
msgBox.colSpan = 2; 
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]; 
} 
// 事件绑定
function addEvent(obj,eventTypeName, fn){
if(obj.addEventListener){
obj.addEventListener(eventTypeName,fn,true);
return true;
}else if(obj.attachEvent){
return obj.attachEvent("on"+eventTypeName,fn);
}else{
return false;
}
}
// 检测浏览器类型
function getBrowser() {
var b;
if ((navigator.userAgent.indexOf("MSIE") >= 0) && (navigator.userAgent.indexOf('Opera') < 0)) {
b = "IE"; 
}else if (navigator.userAgent.indexOf("Firefox") >= 0) {
b = "Firefox"; 
}else if (navigator.userAgent.indexOf("Opera") >= 0){
b = "Opera"; 
}else {
b = "Other";
}
return b;
}
</script>
</head>
<body>
<input type="button" value="点击试试" onclick="alertWin('懒人建站','51xuediannao.com',300,200);" /><br/><br/>
<a href="javascript:alertWin('懒人建站','解放出你的部分写代码时间来思考更高层次的设计 51xuediannao.com',300,200);" _fcksavedurl="javascript:alertWin('懒人建站','懒人建站-解放出你的部分写代码时间来思考更高层次的设计-51xuediannao.com',300,200);">点击试试</a>
</body>
</html>

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代码说明:

这个弹出层居中显示，可以拖动，带有背景遮罩效果。

可以在JS脚本里面做：提示窗口标题高度、提示窗口的边框颜色、提示窗口的标题颜色等配置。

function alertWin(title, msg, w, h){
var titleheight = "22px"; //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 = "#666699";
var bgcolor = "#FFFFFF";

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jQuery 下拉菜单左右滚动导航菜单选项卡网上赚钱二级导航右下角

来源：懒人建站|发布人：懒人建站|2010-03-26|热度：次|收藏|报错

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