How to isolate a figure created in the callback of a GUI?

I have a GUI which displays next to a graph and contains a single input of an offset value for the graph. The callback for the edit text "refreshes" the graph by re-graphing. However, when it does this in the callback function the new graph displays within the GUI. Is there a way to isolate the handles/figures so that each is a separate figure? Here is a simplified example of my code:

    gfig = graph(data);

    handle.offset = uicontrol('Style','edit',...
        'String',offset,...
        'HorizontalAlignment','center',...
        'Position',[63 50 40 25],...
        'Callback',@regraph);

    function regraph(varargin)
        close(gfig);
        data = data + offset;
        gfig = graph(data);
    end

[Kevin Chng]

How about add

figure()

in front your plot command

[Adam Hicks]

Adding figure(gfig) before the graph() call worked. I also then called figure(handle.offset) to bring the GUI to the front. Thanks for the help.

[Adam]

Which graph function are you using? The one I see in my Matlab does not appear to plot anything with the 1 argument syntax.

[Adam Hicks]

The graph function I am using is overloaded and is not a standard Matlab function. Essentially, it plots the data in the provided structure and returns the handle to the figure it creates.