JS获取DIV在BODY内的绝对坐标

JS获取DIV在BODY内的绝对坐标
function   getAbsPoint(e)     
{     
    var   x   =   e.offsetLeft,   y   =   e.offsetTop;     
    while(e=e.offsetParent)   
    {   
       x   +=   e.offsetLeft;     
       y   +=   e.offsetTop;  
    }   
    alert("x:"+x+","+"y:"+y);     
}  
 
方法2：  
 
function   getAbsPoint(obj)     
{     
   var   x,y;     
   oRect   =   obj.getBoundingClientRect();     
x=oRect.left     
y=oRect.top     
alert("("+x+","+y+")")     
}  
 
JS中获得窗口属性的方法   
 
1。获得屏幕的分辨率：   
screen.width   
screen.height   
 
2。获得窗口大小：   
document.body.clientWidth   
document.body.clientHeight   
 
3。获得窗口大小（包含Border、Scroll等元素）   
document.body.offsetWidth   
document.body.offsetHeight   

方法二

$.getAbsPos = function(pTarget){
                     pTarget = JObj.$(pTarget);
                    
                     if(!pTarget.getBoundingClientRect){
                            var x_ = y_ = 0;

                while(pTarget.offsetParent){
                        x_ += pTarget.offsetLeft;
                        y_ += pTarget.offsetTop;
                        pTarget = pTarget.offsetParent;
                }
                            x_ += pTarget.offsetLeft;
                            y_ += pTarget.offsetTop;
                            return {x:x_,y:y_}
                     }else{
                            var body = document.compatMode == 'CSS1Compat' ? document.documentElement : document.body;
                            var rect = pTarget.getBoundingClientRect()
                            return {x:rect.left + body.scrollLeft,y:rect.top + body.scrollTop};
                     }
              }