Multi-browser compatible js code for obtaining element and mouse position_javascript skills

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;