javascript 获取控件绝对位置

 

 

 

方法一：
function GetObjPos()
        {
            var obj = document.getElementById("id");
            var t=obj.offsetTop;  
            var l=obj.offsetLeft;  
            while(obj=obj.offsetParent)
            {  
                t+=obj.offsetTop;  
                l+=obj.offsetLeft;  
            } 
            document.getElementById("a").style.left = l;
            document.getElementById("a").style.top = t + 20;
            return true; 
        }

方法二：
function subABSPos(node) {
    var x = y = 0;
    do { x = node.offsetLeft; y = node.offsetTop; }
    while (node = node.offsetParent);
    return { 'x': x, 'y': y }; 
}

调用：var vx = subABSPos(obj).x;