Js控制弹窗实现在任意分辨率下居中显示

所属分类：网络编程 / JavaScript 阅读数： 1364

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贴代码

 
<!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>弹出窗口_www.jb51.net</title> 
<link type="text/css" rel="stylesheet" href="window.css"> 
<script language="javascript" type="text/javascript" src="../../jquery/jquery.js"></script> 
<script language="javascript" type="text/javascript" src="window.js"></script> 
<script language="javascript"> 
$(document).ready(function (){ 
$("#btn_center").click(function (){ 
$(window).scroll(function (){ 
popcenterWindow(); 
}); 
}); 
$("#btn_right").click(function (){ 
$(window).scroll(function (){ 
poprightWindow(); 
}); 
}); 
$("#btn_left").click(function (){ 
$(window).scroll(function (){ 
popleftWindow(); 
}); 
}); 
}); 
</script> 
</head> 
<body> 
<input type="button" value="弹出居中的窗口" id="btn_center"> 
<input type="button" value="弹出居右的窗口" id="btn_right"> 
<input type="button" value="弹出居左的窗口" id="btn_left"> 
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> 
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> 
<div class="window" id="center"> 
<div class="title"><img src="close.gif">csdn欢迎您</div> 
<div class="content">哈哈哈哈哈哈哈</div> 
</div> 
<div class="window" id="right"> 
<div class="title"><img src="close.gif">csdn欢迎您</div> 
<div class="content">哈哈哈哈哈哈哈</div> 
</div> 
<div class="window" id="left"> 
<div class="title"><img src="close.gif">csdn欢迎您</div> 
<div class="content">哈哈哈哈哈哈哈</div> 
</div> 
</body> 
</html> 

复制代码代码如下:

 
//窗口的高度 
var windowHeight; 
//窗口的宽度 
var windowWidth; 
//弹窗的高度 
var popHeight; 
//弹窗的宽度 
var popWidth; 
//滚动条滚动的高度 
var scrollTop; 
//滚动条滚动的宽度 
var scrollleft; 
//延时的时间 
var timeout; 
function init(){ 
//获得窗口的高度 
windowHeight=$(window).height(); 
//获得窗口的宽度 
windowWidth=$(window).width(); 
//获得弹窗的高度 
popHeight=$(".window").height(); 
//获得弹窗的宽度 
popWidht=$(".window").width(); 
//获得滚动条的高度 
scrollTop=$(window).scrollTop(); 
//获得滚动条的宽度 
scrollleft=$(window).scrollLeft(); 
} 
//定义关闭窗口 
function closeWindow(){ 
$(".title img").click(function (){ 
$(this).parent().parent().hide("slow"); 

}); 

} 
//定义弹出窗口的方法 
function popcenterWindow(){ 
//先清空上一次的延迟 
clearTimeout(timeout); 
timeout=setTimeout(function (){ 
init(); 
var popY=(windowHeight-popHeight)/2+scrollTop; 
var popX=(windowWidth-popWidht)/2+scrollleft; 
$("#center").animate({top:popY,left:popX},300).show("slow");},300); 
closeWindow(); 
} 
function popleftWindow(){ 
clearTimeout(timeout); 
timeout=setTimeout(function (){ 
init(); 
var popY=windowHeight+scrollTop-popHeight-10; 
var popX=scrollleft-5; 
$("#left").animate({top:popY,left:popX},300).show("slow");},300); 
closeWindow(); 
} 
function poprightWindow(){ 
clearTimeout(timeout); 
timeout=setTimeout(function (){ 
init(); 
var popY=windowHeight-popHeight+scrollTop-10; 
var popX=windowWidth-popWidht+scrollleft-10; 
$("#right").animate({top:popY,left:popX},300).show("slow");},300); 
closeWindow(); 
} 

CSS

复制代码代码如下:

 
<SPAN style="FONT-SIZE: 18px">.window{ 
width:250px; 
background-color:#3FF; 
padding:2px; 
margin:5px; 
position:absolute; 
display:none; 
} 
.content{ 
height:150px; 
background-color:#FFF; 
padding:2px; 
font-size:14px; 
overflow:auto; 
} 

.title{ 
padding:2px; 
color:#999; 
font-size:14px; 
} 
.title img{ 
float:right; 
cursor:pointer; 
}</SPAN> 