<!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>
<title> New Document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><script language="JavaScript" type="text/javascript">
var drag_=false
var D=new Function('obj','return document.getElementById(obj);')
var oevent=new Function('e','if (!e) e = window.event;return e')
function Move_obj(obj){
var x,y;
D(obj).onmousedown=function(e){
drag_=true;
with(this){
style.position="absolute";var temp1=offsetLeft;var temp2=offsetTop;
x=oevent(e).clientX;y=oevent(e).clientY;
document.onmousemove=function(e){
if(!drag_)return false;
with(this){
style.left=temp1+oevent(e).clientX-x+"px";
style.top=temp2+oevent(e).clientY-y+"px";
}
}
}
document.onmouseup=new Function("drag_=false");
}
}
</script>
<body>
<div style=" background:#F00; width:500px; height:500px; position:absolute; left:150px;top:30px;">
<div id="test" style="background-color:#0099CC;width:200px;height:100px;border:1px #000 solid;" onmouseover='Move_obj("test")'>鼠标过来点击拖动层</div>
</div></body>
</html> 牛人们,帮帮忙,如何在js里面判断才能不让上面的div移出下面的div ,要兼容所有的浏览器,
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> New Document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><script language="JavaScript" type="text/javascript">
var drag_=false
var D=new Function('obj','return document.getElementById(obj);')
var oevent=new Function('e','if (!e) e = window.event;return e')
function Move_obj(obj){
var x,y;
D(obj).onmousedown=function(e){
drag_=true;
with(this){
style.position="absolute";var temp1=offsetLeft;var temp2=offsetTop;
x=oevent(e).clientX;y=oevent(e).clientY;
document.onmousemove=function(e){
if(!drag_)return false;
with(this){
style.left=temp1+oevent(e).clientX-x+"px";
style.top=temp2+oevent(e).clientY-y+"px";
}
}
}
document.onmouseup=new Function("drag_=false");
}
}
</script>
<body>
<div style=" background:#F00; width:500px; height:500px; position:absolute; left:150px;top:30px;">
<div id="test" style="background-color:#0099CC;width:200px;height:100px;border:1px #000 solid;" onmouseover='Move_obj("test")'>鼠标过来点击拖动层</div>
</div></body>
</html> 牛人们,帮帮忙,如何在js里面判断才能不让上面的div移出下面的div ,要兼容所有的浏览器,
你找找相关的属性,如果兼容性不好解决的话就用JQuery试试
style.marginTop
style.marginLeft
style.marginRight
style.marginBottom
margin指的是相对 也就是距离父节点的距离
这回有办法了吧
让里面的div的top大于等于外面div的top小于等于(外面div的top+外面div的height)