title: how do I show the parameters of a report in a textbox on the report?
body: <p>I have a date range as parameters on my report, @dt_begin and @dt_end.
  On the header of the report I would like to display "report run from @dt_begin to @dt_end".
  with the actual date values in it, example:</p>
  
  <p>"Report run from 14-Oct-2013 to 16-Oct-2013".</p>
  
  <p>How can I do that?
  thanks and regards
  Marcelo</p>