Jquery plugin to simulate an event that is binded to the enter key

jquery.enter.js

/**
 * Jquery enter event plugin.
 * It will intercept keypress events but only call the handlers
 * if the pressed key is Enter
 * Events can be binded with the 'enter' event type or the enter function
 * The function accepts an option data parameter tha will be passes to the handler function 
 * and an event handler. If called without parameters it will trigger the event.
 */
jQuery.event.special.enter = {
    bindType: "keypress",
    delegateType: "keypress",
    handle: function(event, data){
        if (event.which == 13 || !event.originalEvent){
            return event.handleObj.handler(event, data);
        }
    }
};

jQuery.fn.enter = function( data, fn ) {
    return arguments.length > 0 ? this.on('enter', null, data, fn ) : this.trigger('enter');
};