多浏览器兼容的获取元素和鼠标的位置的js代码

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我是靠谱客的博主矮小雪碧，最近开发中收集的这篇文章主要介绍多浏览器兼容的获取元素和鼠标的位置的js代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

复制代码代码如下:

//获取元素的位置 
function getLeft(obj) { 
if (obj == null) 
return null; 
var mendingObj = obj; 
var mendingLeft = mendingObj.offsetLeft; 
while (mendingObj != null && mendingObj.offsetParent != null && mendingObj.offsetParent.tagName != "BODY") { 
mendingLeft = mendingLeft + mendingObj.offsetParent.offsetLeft; 
mendingObj = mendingObj.offsetParent; 
} 

return mendingLeft; 
}; 
function getTop(obj) { 
if (obj == null) 
return null; 
var mendingObj = obj; 
var mendingTop = mendingObj.offsetTop; 
while (mendingObj != null && mendingObj.offsetParent != null && mendingObj.offsetParent.tagName != "BODY") { 
mendingTop = mendingTop + mendingObj.offsetParent.offsetTop; 
mendingObj = mendingObj.offsetParent; 
} 
return mendingTop; 
}; 
//获取鼠标的位置 
function getMousePosition(event) { 
var position = { 
MouseX: 0, 
MouseY: 0 
} 
if (event.pageX != undefined) { 
position.MouseX = event.pageX; 
position.MouseY = event.pageY; 
} 
else { 
var target = EventUtil.getTarget(event); 
position.MouseX = event.offsetX + getLeft(target); 
position.MouseY = event.offsetY + getTop(target); 

} 
return position; 