javascript 拖动div的一种实现,在项目中用到的
<!-- 可以拖动的代码 -->
<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>
调用方法:
<div id="demo" onMouseDown="javascript:Move_obj("demo");">....</div>