Hi Psygorn
>> if u click on Ancient Numerical systems it will recall the .nod file?
Yes, It loads the selected nod file.

Unfortunately, my lack of HTML knowledge stopped me here :)
This is what I've done, maybe someone can help me.

First, I tried to call the "createDialog" with selected .nod url file, it worked well.
but, It needs to close and refresh the nodeeditor window every time user choose a new file.

Simpler way is to clear the graph by calling the LiteGraph methods,
but, I couldn't find a way to access to the "LiteGraph.editor" variable from "ObjLibrary.menu.htm" file.
It is necessary for clearing or starting the graph.

I'll try it later. hope someone can give me a hint. :)