<html>
<title></title>
<script type="text/javascript">
function Drag(obj)
{
var obj = document.getElementById(obj);
obj.style.position = "absolute";
obj.onmousedown = function(e)
{
e = e || window.event;
var x = e.offsetX;
var y = e.offsetY;
document.onmousemove = function(e)
{
e = e || window.event;
obj.style.left = (e.clientX - x) + "px";
obj.style.top = (e.clientY - y) + "px";
}
document.onmouseup = function()
{
document.onmousemove = null;
obj.onmousedown = null;
}
}
}
</script>
</head>
<body>
<div id="div" style="background-color:White;width:300px;height:250px;">
<div id="p" style="cursor:move;background-color:Red;width:300px;height:25px;" onmousedown="Drag('div')">
</div>
<div>
正文
</div>
</div>
</body>
</html>
转载于:https://www.cnblogs.com/nalanken/archive/2011/02/18/1957830.html