弹出框

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<%@ page language="java" pageEncoding="utf-8"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />

.mesWindowTop {
border-bottom: #eee 1px solid;
margin-left: 4px;
padding: 3px;
font-weight: bold;
text-align: left;
font-size: 12px;
}

.mesWindowContent {
margin: 4px;
font-size: 12px;
}

.mesWindow .close {
height: 15px;
width: 28px;
border: none;
cursor: pointer;
text-decoration: underline;
background: #fff
}
</style>
<script>
var isIe=(document.all)?true:false;
//设置select的可见状态
function setSelectState(state)
{
var objl=document.getElementsByTagName('select');
for(var i=0;i<objl.length;i++)
{
objl[i].style.visibility=state;
}
}
function mousePosition(ev)
{
if(ev.pageX || ev.pageY)
{
return {x:ev.pageX, y:ev.pageY};
}
return {
x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,y:ev.clientY + document.body.scrollTop - document.body.clientTop
};
}
//弹出方法
function showMessageBox(wTitle,content,pos,wWidth)
{
closeWindow();
var bWidth=parseInt(document.documentElement.scrollWidth);
var bHeight=parseInt(document.documentElement.scrollHeight);
if(isIe){
setSelectState('hidden');}
var back=document.createElement("div");
back.id="back";
var styleStr="top:0px;left:0px;position:absolute;background:#666;width:"+bWidth+"px;height:"+bHeight+"px;";
styleStr+=(isIe)?"filter:alpha(opacity=0);":"opacity:0;";
back.style.cssText=styleStr;
document.body.appendChild(back);
var mesW=document.createElement("div");
mesW.id="mesWindow";
mesW.className="mesWindow";
mesW.innerHTML="<div class='mesWindowTop'><table width='100%' height='100%'><tr><td>"+wTitle+"</td><td style='width:1px;'><input type='button' onclick='closeWindow();' title='关闭窗口' class='close' value='关闭' /></td></tr></table></div><div class='mesWindowContent' id='mesWindowContent'>"+content+"</div><div class='mesWindowBottom'></div>";
styleStr="left:"+(((pos.x-wWidth)>0)?(pos.x-wWidth):pos.x)+"px;top:"+(pos.y)+"px;position:absolute;width:"+wWidth+"px;";
mesW.style.cssText=styleStr;
document.body.appendChild(mesW);
}
//关闭窗口
function closeWindow()
{
if(document.getElementById('back')!=null)
{
document.getElementById('back').parentNode.removeChild(document.getElementById('back'));
}
if(document.getElementById('mesWindow')!=null)
{
document.getElementById('mesWindow').parentNode.removeChild(document.getElementById('mesWindow'));
}
if(isIe){
setSelectState('');}
}
//测试弹出
function testMessageBox(ev)
{
var objPos = mousePosition(ev);
messContent="<div style='padding:20px 0 20px 0;text-align:center'>消息正文</div>";
showMessageBox('窗口标题',messContent,objPos,350);
}
</script>

</head>

<body>
<div style="padding: 20px">
  <div style="text-align: left";>
   <a href="#none" onclick="testMessageBox(event);">弹出窗口</a>
  </div>
  <div style="text-align: left; padding-left: 20px; padding-top: 10px";>
   <select ID="Select1" NAME="Select1">
    <option>
     下拉
    </option>
   </select>
   弹出窗口时会将其隐藏，关闭时会让其显示，目的是在IE中防止弹出的DIV挡不住下拉框
  </div>
</div>
<br />
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<a href="#none" onclick="testMessageBox(event);">弹出窗口</a>
</body>
</html:html>