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jQuery Div拖動(dòng)+鍵盤(pán)控制綜合效果_層和布局特效

jQuery Div拖動(dòng)+鍵盤(pán)控制綜合效果，隨意拖動(dòng)大方塊，想拖動(dòng)哪就是哪，按回車(chē)鍵，方塊還能做自由落體運(yùn)動(dòng)。

<!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拖動(dòng)+鍵盤(pán)控制綜合效果</title>
<meta http-equiv="mrc-type" mrc="text/html;charset=gb2312">
<script src="http://p1.mb5u.com/texiao/jquery1.3.2.js"></script>
</head>
<body>
預(yù)覽時(shí)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){
			if(v<2)clearInterval(timer);
			msgObj.style.top=h-70+"px";
			v=-v*0.5;	
		}else{
			msgObj.style.top=top+v+"px";
		}
		change();
	},10);
};
$(document).keyup(function(e){
	var e = e || window.event ;
	if(e.which == 13){
		scroll();	
	}
})
var x = 4 ;
var y = 4 ;
function newpro(){
	var Height = document.documentElement.clientHeight ;
	var Width = document.documentElement.clientWidth ;
	var newobj = document.createElement('div');
	newobj.setAttribute('id','bigbox');
	newobj.style.position = 'absolute';
	newobj.style.left = 20 +"px";
	newobj.style.top = 80 +"px";
	newobj.style.height = Height/x +"px" ;
	newobj.style.width = Width/y +"px" ;
	newobj.style.borderWidth = 1+"px";
	newobj.style.borderColor = "#ff6500";
	newobj.style.borderStyle = 'solid' ;
	newobj.innerHTML='<div id="minbox"></div>';
	document.body.appendChild(newobj);
	change();
}
function change(){
	var minobj = document.getElementById('minbox');
	minobj.style.position = 'absolute';
	minobj.style.left = parseInt(msgObj.style.left)/x +"px";
	minobj.style.top = parseInt(msgObj.style.top)/y +"px";
	minobj.style.height = 20 +"px" ;
	minobj.style.width = 30 +"px" ;
	minobj.style.background = "#F06";
}
window.onload = function(){
	newpro();
}
</script>
</body>
</html>

所屬頻道：層和布局特效/更新時(shí)間：2012-11-01

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