JS: Modeless dialog

It is not clear to me, how the user loops through all tables.

But you'll get informed about changing insertion point via Notify Notification(Constants.FA_Note_PostMouseCommand,true);

Here is an example:

IMPORTANT: Dont forget to remove the notification when closing the dialog

var goDoc = app.ActiveDoc;
    
    if (goDoc.ObjectValid())
        {
        var oDia = new Window("palette","ShowPgfFmt");
        
        BuildDialogue();
        
        Notification(Constants.FA_Note_PostMouseCommand,true);
        }
    else
        {
        alert("No active document");    
        }



function BuildDialogue()
{
    oDia.Group = oDia.add("group");
    oDia.PgfName = oDia.Group.add("statictext",undefined,"");
   
    oDia.PgfName.size = [240,40];

    oDia.onClose = RemoveNotification;  
    oDia.show();
}

function Notify(note, object)
{
    switch (note)
            {
                case Constants.FA_Note_PostMouseCommand:
                    {
                    ShowPgfName();
                    break;
                    }
            }
        }
    
function ShowPgfName()
{
    oDia.PgfName.text = ReadPgfName();
    oDia.update()
    
}

function ReadPgfName(locPgf)
{
    var tRange = goDoc.TextSelection;
    var locStartPgf = tRange.beg.obj.Name;
    alert(locStartPgf);
    return  locStartPgf;
    }

function RemoveNotification()
{
   Notification(Constants.FA_Note_PostMouseCommand,false);
}