(function($) {

    // called like $(selector).EnterAction(FunctionToCallOnEnterKey)
    $.fn.EnterAction = function(functionToCall) {
        var $this = this;
        enterActionFunction = functionToCall;

        $('body').delegate($this.selector, 'keypress',
                 function(evt) {
                     if (evt.which == 13) {
                         evt.preventDefault();
                         functionToCall(evt);
                     }
                 });
    }


})(jQuery);