获取元素和鼠标的位置（兼容IE6.0,IE7.0,IE8.0,FireFox2.0,FireFox3.5,Opera），该功能是我一同事钻研出来的，目标是为了实现与QQ自定义布局和拖放模块类似的功能。
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;
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