最短的拖动代码
<!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><meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script language="JavaScript" type="text/javascript">
var x,y
var drag_=false
var D=new Function('obj','return document.getElementById(obj);')
var IE=new Function('','if(navigator.appName.indexOf("Explorer")>=0)return 1;if(navigator.appName.indexOf("Netscape")>=0)return 2')
function Move_obj(obj){//1
D(obj).onmousedown=function(e){drag_=true//4
with(this){style.position="absolute";temp1=offsetLeft;temp2=offsetTop;//5
if(IE()==1){x=event.clientX;y=event.clientY//6
document.onmousemove=function(e){//7
if(drag_==false)return false
with(this){style.left=temp1+event
html：
<div id="slide-box">
<div id="slide">
<div id="fbshutter" style="width:1px;">
<img id="bPic" src="images/01.gif" /> </div>
......
