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最简短的拖动对象代码实例演示

类别：默认分类　|　浏览(96)　|　2006-11-29 11:55:00　|　关闭广告

<!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" lang="gb2312"> 
<head> 
<title> 代码实例：拖动对象 Drag Object (兼容:IE、Firefox、Opera ... )</title> 
<meta http-equiv="content-type" content="text/html; charset=gb2312" /> 
<meta name="editor" content="枫岩,http://www.cnlei.com"> 
<meta name="keywords" content="代码实例：拖动对象"> 
<meta name="description" content="最简短的拖动对象代码实例演示"> 
<style> 
.dragAble {position:relative;cursor:move;} 
</style> 
<script language="javascript"> 
<!-- 
// Author:  Unkonw 
// Modify:  枫岩@CnLei.com 
var ie=document.all; 
var nn6=document.getElementById&&!document.all; 
var isdrag=false; 
var y,x; 
var oDragObj; 

function moveMouse(e) { 
 if (isdrag) { 
 oDragObj.style.top  =  (nn6 ? nTY + e.clientY - y : nTY + event.clientY - y)+"px"; 
 oDragObj.style.left  =  (nn6 ? nTX + e.clientX - x : nTX + event.clientX - x)+"px"; 
 return false; 
 } 
} 

function initDrag(e) { 
 var oDragHandle = nn6 ? e.target : event.srcElement; 
 var topElement = "HTML"; 
 while (oDragHandle.tagName != topElement && oDragHandle.className != "dragAble") { 
 oDragHandle = nn6 ? oDragHandle.parentNode : oDragHandle.parentElement; 
 } 
 if (oDragHandle.className=="dragAble") { 
 isdrag = true; 
 oDragObj = oDragHandle; 
 nTY = parseInt(oDragObj.style.top+0); 
 y = nn6 ? e.clientY : event.clientY; 
 nTX = parseInt(oDragObj.style.left+0); 
 x = nn6 ? e.clientX : event.clientX; 
 document.onmousemove=moveMouse; 
 return false; 
 } 
} 
document.onmousedown=initDrag; 
document.onmouseup=new Function("isdrag=false"); 
//--> 
</script> 
</head> 
<body> 
<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" /> 
<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" />

<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" />


<div style="border:1px solid #ff6d00;background:#ffd801;width:240px;padding:5px 0;" class="dragAble">这些都是可拖动对象</div> 
</body> 
</html>

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