(function($) {
    $.fn.listenForEnter = function() {
        return this.each(function() {
            $(this).focus(function() {
                $(this).data('safeEnter_InAutocomplete', false);
            });
            $(this).keypress(function(e) {
                var key = (e.keyCode ? e.keyCode : e.which);
                switch (key) {
                    case 13:
                        // Fire the event if:
                        //   - we're not currently in the browser's Autocomplete, or
                        //   - this isn't a textbox, or
                        //   - this is Opera (which provides its own protection)
                        if (!$(this).data('safeEnter_InAutocomplete') || !$(this).is('input[type=text]') || $.browser.opera) {
                            $(this).trigger('pressedEnter', e);
                        }
                        $(this).data('safeEnter_InAutocomplete', false);
                        break;

                    case 40:
                    case 38:
                    case 34:
                    case 33:
                        // down=40,up=38,pgdn=34,pgup=33
                        $(this).data('safeEnter_InAutocomplete', true);
                        break;

                    default:
                        $(this).data('safeEnter_InAutocomplete', false);
                        break;
                }
            });
        });
    };

    $.fn.clickOnEnter = function(target) {
        return this.each(function() {
            $(this)
				.listenForEnter()
				.bind('pressedEnter', function() {
				    var href = $(target).attr('href');
				    if (href != null) {
				        eval(href);
				    }
				});
        });
    };
})(jQuery);