code: public boolean onHome()
      {
          if (!(this instanceof BaseScreen))
              return false;   // This can only be called from the main screen
          BasePanel screenParent = this.getParentScreen();
          
  		int count = 0;
  		while (screenParent.popHistory(1, false) != null)
  		{	// Pop all the history.
  			count++;
  		}
  		count--;	// Want to move back to the first one
  		if (count > 0)
  			screenParent.popHistory(count, true);		// Dump all browser history
          String strLastCommand = Utility.addURLParam(null, Params.MENU, Constant.BLANK);  //"?menu="; // Blank command = home
          this.handleCommand(strLastCommand, this, ScreenConstants.USE_SAME_WINDOW | ScreenConstants.DONT_PUSH_TO_BROWSER);     // Process the last command in this window
          return true;    // Handled
      }
docs: Process the "Home" command.
  @return true if successful.