unobtrusive “default” text in input WITHOUT jQuery

Question

i\'m trying to write unobtrusive default/placeholder text in input (actually, relatively placed label over input, which hides on onFocus

Answer 1

Here's how I do:

Online Working Example

http://jsbin.com/ehivo3 (source code)

HTML

jQuery

$(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('');
    });
  });
});

And that's all! No invalid or extra attributes, valid markup and all handled in your jQuery file. :)