test.js

function drawContextMenu() {

    $("#formFieldContextMenu").tooltip("hide");

    // get the singleton context menu
    _divOvr = document.getElementById("formFieldContextMenu");

    // retrieve the field location in the document
    var fldPos = _currentField.textField.bounds;

    // and calculate the offset location and zoom factor
    var x = _textView.offsetLeft + (fldPos.location.x / 15 - _txtViewLoc.x) * _zoom;
    var y = _textView.offsetTop + ((fldPos.location.y / 15) 
                                + (fldPos.size.height / 15) - _txtViewLoc.y) * _zoom;

    // set position and size
    _divOvr.style.zIndex = _textView.style.zIndex;
    _divOvr.style.left = x + "px";
    _divOvr.style.top = y + 5 + "px";
    _divOvr.style.display = "flex";

    // show tooltip once
    if (_tooltipShown === false) {
        $("#formFieldContextMenu").tooltip("show");
        _tooltipShown = true;
    }
    else
        $("#formFieldContextMenu").tooltip("disable");
}