js控制div弹出层实现方法

网络编程 2025/11/13 佚名

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本文实例讲述了js控制div弹出层实现方法。分享给大家供大家参考。具体分析如下：

这是个功能很好，且容易调用和控制的弹出层。感兴趣的朋友可以调试运行一下看看效果如何~O(∩_∩)O~

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>弹出窗口(可拖动，背景灰色透明)</title>
<script type="text/javascript">
<!--
/*FileName:AlertMsg.js
title:提示标题
content:提示的内容*/
document.write("<style type=\"text/css\">*{padding:0; margin:0}.close{float:right;cursor:default}</style>")
function $(id){ return document.getElementById(id)}
function AlertMsg(title,content){
var msgw,msgh,msgbg,msgcolor,bordercolor,titlecolor,titlebg,con;
con = "<form><table style='margin:10px 15px 15px 15px; border:0;'><tr><th style='border:0; line-height:22px; padding:3px 0; vertical-align:top;font-weight:bold;'>分类：</th><td style='border:0; line-height:22px; padding:3px 0; vertical-align:top;width:75%;'><input type='text' name='typename' size='20'/></td></tr><tr><th></th><td style='border:0; line-height:22px; padding:3px 0; vertical-align:top;width:75%;'><button style='line-height:normal;' type='submit' onclick='return submitform()'>确定</button>　<button style='line-height:normal;' type='reset'>取消</button></td></tr></table></form>";
//弹出窗口设置
msgw = 300;  //窗口宽度
msgh = 150;  //窗口高度
msgbg = "#FFF";  //内容背景
msgcolor = "#000";  //内容颜色
bordercolor = "#000"; //边框颜色
titlecolor = "#FFF"; //标题颜色
titlebg = "#369";  //标题背景
//遮罩背景设置
var sWidth,sHeight;
sWidth = screen.availWidth;
sHeight = document.body.scrollHeight;
//创建遮罩背景
var maskObj = document.createElement("div");
maskObj.setAttribute('id','maskdiv');
maskObj.style.position = "absolute";
maskObj.style.top = "0";
maskObj.style.left = "0";
maskObj.style.background = "#777";
maskObj.style.filter = "Alpha(opacity=30);";
maskObj.style.opacity = "0.3";
maskObj.style.width = sWidth + "px";
maskObj.style.height = sHeight + "px";
maskObj.style.zIndex = "10000";
document.body.appendChild(maskObj);
//创建弹出窗口
var msgObj = document.createElement("div")
msgObj.setAttribute("id","msgdiv");
msgObj.style.position ="absolute";
msgObj.style.top = (screen.availHeight - msgh) / 4 + "px";
msgObj.style.left = (screen.availWidth - msgw) / 2 + "px";
msgObj.style.width = msgw + "px";
msgObj.style.height = msgh + "px";
msgObj.style.fontSize = "12px";
msgObj.style.background = msgbg;
msgObj.style.border = "1px solid " + bordercolor;
msgObj.style.zIndex = "10001";
//创建标题
var thObj = document.createElement("div");
thObj.setAttribute("id","msgth");
thObj.className = "DragAble";
thObj.style.cursor = "move";
thObj.style.padding = "4px 6px";
thObj.style.color = titlecolor;
thObj.style.background = titlebg;
var titleStr = "<a class='close' title='关闭' style='cursor:pointer' onclick='CloseMsg()'>关闭</a>"+"<span>"+ title +"</span>";
thObj.innerHTML = titleStr;
//创建内容
var bodyObj = document.createElement("div");
bodyObj.setAttribute("id","msgbody");
bodyObj.style.padding = "10px";
bodyObj.style.lineHeight = "1.5em";
bodyObj.innerHTML = con;
var txt = document.createTextNode(content)
bodyObj.appendChild(txt);
//生成窗口
document.body.appendChild(msgObj);
$("msgdiv").appendChild(thObj);
$("msgdiv").appendChild(bodyObj);
}
function CloseMsg(){
//移除对象
document.body.removeChild($("maskdiv"));
$("msgdiv").removeChild($("msgth"));
$("msgdiv").removeChild($("msgbody"));
document.body.removeChild($("msgdiv"));
}
//拖动窗口
var ie = document.all;  
var nn6 = document.getElementById&&!document.all;  
var isdrag = false;  
var y,x;  
var oDragObj;  
function moveMouse(e) {  
if (isdrag) {  
oDragObj.style.top = (nn6 "px";  
oDragObj.style.left = (nn6 "px";  
return false;  
}  
}  
function initDrag(e) {  
var oDragHandle = nn6 "HTML";  
while (oDragHandle.tagName != topElement && oDragHandle.className != "DragAble") {  
oDragHandle = nn6 "DragAble") {  
isdrag = true;  
oDragObj = oDragHandle.parentNode;  
nTY = parseInt(oDragObj.style.top);  
y = nn6 "isdrag=false");  
//-->
</script>
</head>
<body>
<table width="600" border="0" cellspacing="0" cellpadding="0">
 <tr >
  <td height="100" align="center" >
<p><a href="javascript:AlertMsg(&quot;温馨提示&quot;,'')">点我试试!</a></p>
  </td>
 </tr>
</table>
</div>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。

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