First try at a jQuery plugin for event adding

First try at a jQuery plugin for event adding

Hi all,

Just after some guidance or suggestions as to weather I am on the right track, style etc.

I wanted to be able to insert an event at the top of an event stack in the new jQuery-1.4.2 special event handler.

I have written the following which accomplishes this for me, but want to know if I'm "doing it right".

  1. (function(jQuery){
  2.     function modalEventAdd( obj ) {
  3.         obj.origType = obj.type;
  4.         if (obj.type.indexOf('modal') != -1) {
  5.             obj.type = obj.type.split('modal')[1]
  6.         } else {
  7.             throw obj.type + ' is not modal supported';
  8.         }

  10.         var events = jQuery.data(this, "events");
  11.         if (events[ obj.type ]) events[ obj.type ].reverse();

  13.         jQuery.event.add( this, obj.type, obj, obj.data );

  15.         if (events[ obj.type ]) events[ obj.type ].reverse();
  16.     }

  18.     jQuery.extend(jQuery.event.special, {
  19.         modalkeydown  : { add: modalEventAdd },
  20.         modalkeypress : { add: modalEventAdd },
  21.         modalkeyup    : { add: modalEventAdd },
  22.     })

  24. })(jQuery)
Now to add an event at the top of the event stack I can use something like the following:

  1. $(document).bind('modalkeydown', function(event){event.stopImmediatePropagation()});

Suggestions?
Should I do more error handling around line 10 for fetching data?
Should I cache events[ obj.type ] for reversing again after adding?
Should I not do this at all because of event handler position tracking?