$("#GlobalDialogBox").dialog({
        modal: true,
        buttons: {
        "Yes": function () {
            callbackFunctionTrue();
            $(this).dialog('close');
         },
        "No": function () {
            callbackFunctionFalse();
            $(this).dialog('close');
         }
      }
    });

   alert("This should fire after answering the dialog box."); //but this fires as soon as the dialog pops up.. :(

$("#GlobalDialogBox").on( "dialogclose", function( event, ui ) {
      alert("something");
});

$("#GlobalDialogBox").dialog({
    modal: true,
    buttons: {
        "Yes": function () {
            callbackFunctionTrue();
            $(this).dialog('close');
         },
        "No": function () {
            callbackFunctionFalse();
            $(this).dialog('close');
         }
    },
    close: function(event, ui){
       alert("something");
    }
});

function dialog_confirm(){
  $( "#dialog-confirm" ).dialog({
    //autoOpen: false,
    resizable: false,
    height:140,
    modal: true,
    buttons: {
      "Delete all items": function() {
        $( this ).dialog( "close" );
        dialog_confirm_callback(true);
      },
      Cancel: function() {
        $( this ).dialog( "close" );
        dialog_confirm_callback(false);
      }
    }
  });
}
function dialog_confirm_callback(value) {
  if (value) {
    alert("Confirmed");
  } else {
    alert("Rejected");
  }
}