<div id=MoveDiv style=position:absolute;left:200;top:50;width:100;height:300;background:blue>
	<div style=position:absolute;left:0;top:0;width:100;height:20;background:red onmousedown=MDown(MoveDiv)>
	按这里移动
	</div>
</div>

<script>
var Obj=''
document.onmouseup=MUp
document.onmousemove=MMove

function MDown(Object){
Obj=Object.id
document.all(Obj).setCapture()
pX=event.x-document.all(Obj).style.pixelLeft;
pY=event.y-document.all(Obj).style.pixelTop;
}

function MMove(){
if(Obj!=''){
	document.all(Obj).style.left=event.x-pX;
	document.all(Obj).style.top=event.y-pY;
	}
}

function MUp(){
if(Obj!=''){
	document.all(Obj).releaseCapture();
	Obj='';
	}
}
</script>