$(document).ready(function() {

  // Handle each input on focus() and blug()

  $('input[type="text"]').each(function() {

    $(this)

      // Store the default value internally

      // Don't use .val() because browser autofill will poison it

      .data('defaultValue', $(this).attr('value'))

      // Handle the focus() (when you enter the field)

      .focus(function() {

        if ($(this).val() == $(this).data('defaultValue'))

          $(this).val('');

      })

      // Handle the blur() (when you leave the field)

      .blur(function() {

        if ($(this).val() == '')

          $(this).val($(this).data('defaultValue'));

      });

  });

  // Clear all fields with "default value" on submit

  $('form').submit(function() {

    $('input[type="text"]', $(this)).each(function() {

      // If the input still with default value, clean it before the submit

      if ($(this).val() == $(this).data('defaultValue'))

        $(this).val('');

    });

  });

});