Accessing Buttons, Labels and Panels

Hi everybody:
     The problem is that i have found the methods to obtain Components
as ImageIcon[], JMenuBars, JToolbars, etc. I talk about the following
methods:

xul.lookupAnim("a string");
xul.lookupMenuBar("a string");
xul.lookupToolBar("a string");

but i cannot access to a simple button with some method. I need this
to be able to change the text in a status bar. could you help me?.
Another question, could you say me where is the reference to the
statusbar and  statusbarpanel tags?. Thank you


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