Open external site when dialog OK button clicked

Open external site when dialog OK button clicked

Got the code below and I need to open a new tab/window with an external link when the user clicks the Ok button. (I do not mean a JQuery-UI Tab, I mean a browser tab)

How do I do that?
  1. $(document).ready(function(){
        $('#WebFLIS').dialog({autoOpen: false,
                              resizable: false,
                              modal: true,
                              width: 500,
                              height: 'auto'},
                              buttons: {
                                Ok: function() {
                                     $(this).dialog('close');
                                     // Need to open external site in new tab/window here
                                   }
                                Cancel: function () {
                                     $(this).dialog('close');
                                }
                              }
                              );
        $("[class*=WebFLIS]").click(function(e){
            e.preventDefault();
            $('#WebFLIS').dialog('open');
            });
        });
    });