(function ($) {
$.fn.hint = function (blurClass) {
  if (!blurClass) { 
    blurClass = 'blur';
  }    
  return this.each(function () {
    var $input = $(this),        
      title = $input.attr('title'),
      $form = $(this.form),
      $win = $(window);
    function remove() {
      if ($input.val() === title && $input.hasClass(blurClass)) {
        $input.val('').removeClass(blurClass);
      }
    }  
    if (title) { 
      $input.blur(function () {
        if (this.value === '') {
          $input.val(title).addClass(blurClass);
        }
      }).focus(remove).blur();            
      $form.submit(remove);
      $win.unload(remove); 
    }
  });
};

})(jQuery);