div 위치 지정하기

function fncA(){
    var addTop = 0;
    var addLeft = 0;
    var cartoon21 = document.getElementById('cartoon21');
    var currentObj = document.getElementById('cartoon21');
    var x = window.event.clientX;
    var y = window.event.clientY;

    while(currentObj.tagName.toLocaleUpperCase() != "BODY"){
        //alert("top:"+currentObj.offsetTop + " tabName:" + currentObj.id);
        currentObj = currentObj.offsetParent;
        addTop += currentObj.offsetTop;
        addLeft += currentObj.offsetLeft;
    }
   
    //var aaa = document.getElementById('aaa');
    //alert(cartoon21.offsetParent.tagName);
    cartoon21.style.top = y - addTop;
    cartoon21.style.left = x - addLeft;
}

심심해서 만들었음;;