Quick and dirty jQuery watermark function

watermark.js

// Quick & dirty watermark function
// inspired by https://github.com/marioestrada/jQuery-Watermark
(function ($){
    
    $.fn.watermark = function(){

        var $elems = $(this).filter('textarea, input[type="text"]');

        $elems.each(function(i, e){
            
            var $this = $(e);
            var title = $this.attr('title') || '';
            
            $this
                .show(function(){
                    $this.val(title);
                })
                .focus(function(){
                    $this.val('');
                })
                .blur(function(){
                    if ($this.val() == '' || $this.val() == title){
                        $this.val(title);
                    }
                });
        });
    }

    $(function(){
        $('.watermark').watermark();
    });

})(jQuery);