/**********

          file:              eq_show.js
          created:     26 aug 2007
          topic:          Open new window showing proof of statement that
                               if point (x,y ) satisfies the ellipse equation then
                               ( x,y ) musst be on the ellipse
          updates:
                1 )  Renamed this file from eq2_show.js  to  eq_show.js
                2 )  Revised code because we changed file name
                            from     eq2_proof_box/proof_2.htm
                            to          ellipse_equation_box/the_derivation

               02 sept 2007
                  1 )  Renamed ftn 
                              from launch_proof_window 
                              to launch_proof_equation_window
              
      **********/


    function             launch_proof_equation_window ( )
         {
                var          my_url  =  "ellipse_equation_box/the_derivation.htm" ;

                var          my_win_name  =  "xy_ellipse_eq" ;

                var          my_list  =  "scrollbars=yes, width=900, height=400, status=yes, resizable=yes" ;

                var          xx = window.open( my_url, my_win_name, my_list ) ;


       } // launch_proof_equation_window