$rwdguivar=
"
	<tab name=\"rwdcalc\" caption=\"calc\">

    <table>
      <row> <p align=\"right\">First number:</p>  <text name=\"a_calc\"/> </row>
      <row> <p align=\"right\">Second number:</p> <text name=\"b_calc\"/> </row>
    </table>
    <p>%result%</p>
    <horizontal>

      <button caption=\"Multiply\" action=\"multiply\"/>
      <button caption=\"Add\" action=\"add\"/>
    </horizontal>

	</tab>"