public Input addButton(String tag,
                           String label)
    {
        if (buttons==null)
            buttonsAtBottom();
        Input e = new Input(Input.Submit,tag,label);

        if (extendRow)
            addField(null,e);
        else
            buttons.add(e);
        return e;
    }
public Input addButton ( String tag , String label ) { if ( buttons == null ) buttonsAtBottom ( ) ; Input e = new Input ( Input . Submit , tag , label ) ; if ( extendRow ) addField ( null , e ) ; else buttons . add ( e ) ; return e ; }
Add a Submit Button.
@param tag The form name of the element
@param label The label for the Button