可拖拽的窗口（div）

来源：互联网发布：天下3英雄榜数据编辑：程序博客网时间：2024/06/05 05:28

<!DOCTYPE html>

<html id="hId">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<style type="text/css">

*{
margin:0px;
padding:0px;
}

#box{
position:absolute;
left:300px;
top:100px;
width:300px;
height:200px;
border:1px solid black;
}

#title{
width:300px;
height:30px;
background-color:green;
text-align:center;
}

#content{
width:300px;
height:170px;
}

</style>

<body>
<div id="box">
<div id="title">
标题
</div>
<div id="content">
内容内容内容内容
</div>
</div>
</body>
</html>

<script type="text/javascript">

window.onload = function(){
var isDown = false;
var offsetX =0;
var offsetY =0;
document.getElementById("title").onmousedown = function(event){
var evt = event || window.event;
offsetX = evt.offsetX;
offsetY = evt.offsetY;
isDown=true;
//this.style.cursor = "pointer";
this.style.cursor = "pointer";
}

document.onmouseup = function(){
isDown=false;
}

document.onmousemove = function(event){
if(isDown){
var box = document.getElementById("box");
var evt = event || window.event;
box.style.left = (evt.pageX-offsetX)+"px";
box.style.top = (evt.pageY-offsetY)+"px";
}
}
}

</script>

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