javascript获得鼠标的绝对位置
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<body onmouseMove="getXY(event)">
<script language="JavaScript">
<!--
function mouseX(evt) {
if (evt.pageX) return evt.pageX;
else if (evt.clientX)
return evt.clientX + (document.documentElement.scrollLeft ?
document.documentElement.scrollLeft :
document.body.scrollLeft);
else return null;
}
function mouseY(evt) {
if (evt.pageY) return evt.pageY;
else if (evt.clientY)
return evt.clientY + (document.documentElement.scrollTop ?
document.documentElement.scrollTop :
document.body.scrollTop);
else return null;
}
function getXY(event)
{
var e = event || window.event;
var x = mouseX(e);
var y = mouseY(e);
document.getElementById("XY").innerHTML = "X:" + x + "<br />Y:" + y;
}
function getX(elementID)
{
var el = elementID
return el.offsetLeft
}
function getY(elementID)
{
var el = elementID
return el.offsetTop
}
function getElementPositionX(elemID)
{
var offsetTrail = document.getElementById(elemID);
var offsetLeft = 0;
while(offsetTrail)
{
offsetLeft += offsetTrail.offsetLeft;
相关文档：
"These memory leaks often
occur as a result of circular references between JavaScript objects and
objects within IE’s DOM (document object model)."
GPDE Team Blog
明显的DOM对象与 JavaScript对象循环引用很好判断，难的是隐含的循环引用判断！
隐含的循环引用需要通过作用域链进行分析判 ......
访问控件的主要对象是:document对象。分别对应当前文档所有的（子对象）个人观点。并且已经提供的几个主要方法来访问对象。
1. document.getElementById
2. document.getElementsByName
3 document.getElementsByTagName
4 document.all
下面我主要谈谈以上几个方法的具体用法：
一．首先我来谈谈document.getE ......
function getHeight(){
var yScroll;
if (window.innerHeight && window.scrollMaxY) {
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offs ......
<table>
<tr>
<td style="width: 201px; height: 22px;" valign="middle" align="right">
&n ......
