gistfile1.js

function ZB_layerAction(name, status) {
    var obj = document.getElementById(name);
    var _tmpx, _tmpy, marginx, marginy;
    
    _tmpx = event.clientX + parseInt(obj.offsetWidth);
    _tmpy = event.clientY + parseInt(obj.offsetHeight);
    _marginx = document.body.clientWidth - _tmpx;
    _marginy = document.body.clientHeight - _tmpy;

    var scrollLeft = (document.documentElement && document.documentElement.scrollLeft) || document.body.scrollLeft;
    var scrollTop = (document.documentElement && document.documentElement.scrollTop) || document.body.scrollTop;
    
    if (_marginx < 0)
        _tmpx = event.clientX + scrollLeft + _marginx;
    else
        _tmpx = event.clientX + scrollLeft;
    if (_marginy < 0)
        _tmpy = event.clientY + scrollTop + _marginy + 20;
    else
        _tmpy = event.clientY + scrollTop;

    obj.style.left = (_tmpx - 13) + "px";
    obj.style.top = (_tmpy - 12) + "px";

    if (status == 'visible') {
        if (select_obj) {
            select_obj.style.visibility = 'hidden';
            select_obj = null;
        }
        select_obj = obj;
    } else {
        select_obj = null;
    }
    obj.style.visibility = status;
}