jQuery plugin to auto show button to clear input field

clearables

/*
    jQuery plugin that sets up input fields with styling and a 'dismiss' icon.
    any input elements with clearable class get an icon that shows when there is data in the input
    clicking the icon clears the input and triggers a 'cleared' event and sets focus to input
*/
;(function ($, window, document, undefined) {
    var pluginName = 'setupClearables', defaults = {};

    function updateClearButton(x)
    {
        if (x.value == "" ||  x.value == $(x).attr('placeholder'))
        {
            $(x).siblings('img').addClass('hide');
        }
        else
        {
            $(x).siblings('img').removeClass('hide');
        }
    }

    function Plugin( element, options ) {
        this.element = element;
        this.options = $.extend( {}, defaults, options );

        this._defaults = defaults;
        this._name = pluginName;

        this.init(element);
    }

    Plugin.prototype.init = function(){
        var funcElem = $(this.element);
        funcElem.find('.clearableInput').wrap('<span class="clearwrapper UserInput"></span>')
            .after('<img class="clearsearch hide" title="Clear input" ' +
             ' src="/css/themes/classic/images/icons/clearsearch.png" ' +
             ' alt="clear the input" />');

        $(function ()
        {
            // after doc ready allow more time for any programmatic input value setting
            // then update  the clearable items to show the image or not
            setTimeout(function ()
            {
                funcElem.find('.clearableInput').each(function (x, e)
                {
                    updateClearButton(e);
                });
            }, 10);
        });

        //when the clear box is clicked clear the input field, the button and set focus and trigger an event
        funcElem.find('img.clearsearch').click(function ()
        {
            var inp = $(this).siblings('.clearableInput')
            inp.val('');
            updateClearButton(inp[0]);
            inp.focus();
            inp.trigger("cleared");
        });

        // listen for any input changes to update the icon
        funcElem.find('.clearableInput').bind('propertychange keyup input paste', function (x)
        {
            setTimeout(function ()
            { //allow for input to change from action
                updateClearButton(x.target);
            }, 10);
        })
    }

    $.fn[pluginName] = function ( options ) {
        return this.each(function () {
            if (!$.data(this, 'plugin_' + pluginName)) {
                $.data(this, 'plugin_' + pluginName,
                new Plugin( this, options ));
            }
        });
    }

})(jQuery, window, document);