(function ($) {

    $(function () {
        var originalVal = $('.clear-on-focus').val();
        $('.clear-on-focus').focus(function () {
            if(originalVal == $(this).val())
                $(this).val('');
        });

        $('.clear-on-focus').blur(function () {
            if ($(this).val() == "" && typeof (originalVal) != "undefined") {
                $(this).val(originalVal);
            }
        });
          });

})(jQuery);