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> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="editplus" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
</head>
<body>
<script type="text/javascript">
<!--
function $(id)
{
return document.getElementById(id);
}
var g_CatchDiv = false;
var g_obj;
var g_objName;
function CatchMoveDiv(obj, name)
{
window.setTimeout('g_CatchDiv = true', 200);
g_obj = obj;
g_objName = name;
var oMove = $('divMove');
var MoveObj = obj;
oMove.innerHTML = MoveObj.outerHTML;
oMove.style.cursor = '';
oMove.style.filter = 'alpha(opacity=50)';
//    document.body.style.filter = 'alpha(opacity = 30)';
//    oMove.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=50)';
oMove.style.left = event.x - 35;
oMove.style.top = event.y + 10;
oMove.setCapture();
document.onmouseup = function() {ReleaseDiv();};
document.onmousemove = function() {MoveDiv();};
}
function ReleaseDiv()
{
window.setTimeout('g_CatchDiv = false', 200)
var oMove = $('divMove');
oMove.style.display = 'none';
oMove.releaseCapture();
document.onmousemove = null;
}
function MoveDiv()
{
if (g_CatchDiv)
{
var oMove = $('divMove');
oMove.style.left = event.x - 35;
oMove.style.top = event.y;
oMove.style.display = '';
}
}
//-->
</script>
<div id="divA" style="cursor:pointer; border:solid 1px" onmousedown="if (!g_CatchDiv) {CatchMoveDiv(this, this.innerText);}" onmousemove="if (g_CatchDiv && g_obj != this) {if (confirm('你确定将〖' + g_objName + '〗移动到〖' + this.innerText + '〗下吗？')) {}}">AAA</div>
<div>&nbsp;</div>
<div id="divB" style="cursor:pointer; border:solid 1px" onmousedown="if (!g_CatchDiv) {CatchMoveDiv(this, this.innerText);}" onmousemove="if (g_CatchDiv && g_obj != this) {if (confirm('你确定将〖' + g_objName + '〗移动到〖' + this.innerText + '〗下吗？')) {}}">BBB</div>
<div id="divMove" style="position:absolute;display:none; z-index:0;"></div>
<input id="btnSubmit" type="submit" onmousedown="if (!g_CatchDiv) {CatchMoveDiv(this, this.value);}" onmousemove="if (g_CatchDiv && g_obj != this) {if (confirm('你确定将〖' + g_objName + '〗移动到〖' + this.value + '〗下吗？')) {}}" value="Submit" />
<input type="reset" onmousedown="if (!g_CatchDiv) {CatchMoveDiv(this, this.value);}" onmousemove="if (g_CatchDiv && g_obj != this) {if (confirm('你确定将〖' + g_objName + '〗移动到〖' + this.value + '〗下吗？')) {}}" value="Reset" />
</body>
</html>