<!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=utf-8" />
<title>可拖动全屏弹出层</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"; // 提示窗口的标题背景色
var bgcolor = "#FFFFFF"; // 提示内容的背景色
var iWidth = document.body.clientWidth;
var iHeight = document.body.clientHeight;
//弹出层的后背景
var bgObj = document.createElement("div");
bgObj.id = "bgObjId";
bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:" + iWidth + "px;height:" + Math.max(document.body.clientHeight, iHeight) + "px;filter:Alpha(Opacity=30);opacity:0.3;background-color:#000000;z-index:101;";
document.body.appendChild(bgObj);
//弹出层
var msgObj = document.createElement("div");
msgObj.id = "msgObjId";
msgObj.style.cssText = "position:absolute;font:11px '\u5b8b\u4f53';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);
//弹出层里面的表格 msgObj.appendChild(table);
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 '\u5b8b\u4f53';color:" + titlecolor + ";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor;
titleBar.style.paddingLeft = "10px";
titleBar.innerHTML = title;
//关闭
var closeBtn = tr.insertCell(-1);
closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor;
closeBtn.innerHTML = "<span style='font-size:15pt; color:" + titlecolor + ";'>\xd7</span>";
closeBtn.onclick = function () {
document.body.removeChild(bgObj);
document.body.removeChild(msgObj);
};
//主题内容
var msgBox = table.insertRow(-1).insertCell(-1);
msgBox.style.cssText = "font:10pt '\u5b8b\u4f53';";
msgBox.colSpan = 2;
msgBox.innerHTML = msg;
//以下部分弹出层可以移动
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;
}
};
};
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',300,200);" />
</body>
</html>