method get_attribute : o_mDOMString -> o_mDOMString option
method get_attribute_ns :
o_mDOMString -> o_mDOMString -> o_mDOMString option
method get_attribute : o_mDOMString -> o_mDOMString option
method get_attribute_ns :
o_mDOMString -> o_mDOMString -> o_mDOMString option