modal window

modal window

Hi there,  here http://www.kernel-online.it/divecircle there is my project. 

If you click on grey button "INSERISCI LA TUA DESTINAZIONE PREFERITA" a popup is open. 
After if you click on Passegero another popup is open. 

My problem is the position the second popup:  I would put this popup under the button "Passeggero" instead in the center of the first popup

  2.  $('#addperson-1').click(function(){
  3.                     $('#select-person').dialog({
  4.                         width:270,
  5.                        height:160,
  6.                        maxWidth:300,
  7.                        maxHeight: 160,
  8.                        my: "right center",
  9.                         at: "right bottom",
  10.                         of: "#dialog"  /*the first popup*/
  11.                     });
  12.                     
  13.                 });
    14.