本文实例讲述了jQuery实现Div拖动+键盘控制综合效果的方法。分享给大家供大家参考。具体实现方法如下：
代码如下:
<!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>jQuery Div拖动+键盘控制综合效果</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<script src="/ajaxjs/jquery1.3.2.js"></script>
</head>
<body>
预览时看不到效果，刷新一下即可
<div id="text" style="width:120px;height:60px;background:#F06;position:absolute;left:500px;top:90px;cursor:move;"></div>
<script type="text/javascript">
var msgObj = document.getElementById('text');
var posx = 0;
var posy = 0;
var moveable = false;
var MouseDownEvent = document.onmousedown;
var MouseMoveEvent = document.onmousemove;
var MouseUpEvent = document.onmouseup;
msgObj.onmousedown = function(evt) {
var evt = evt||window.event;
moveable = true;
posy = evt.clientY-parseInt(msgObj.style.top);
posx = evt.clientX-parseInt(msgObj.style.left);
document.onmousemove = function(evt) {
if (moveable) {
var evt = evt||window.event;
msgObj.style.left = evt.clientX - posx + "px";
msgObj.style.top = evt.clientY - posy + "px";
}
change();
};
document.onmouseup = function () {
if (moveable) {
document.onmousemove = MouseMoveEvent;
document.onmouseup = MouseUpEvent;
moveable = false;
posx = 0;
posy = 0;
}
};
}
var v=1;
var a=0.9;
var h=document.documentElement.clientHeight;
function scroll(){
var timer=setInterval(function(){
v +=a;
var top=(parseInt(msgObj.style.top)||0);
if(top+v>h-70){
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