Question

With my code I am clearing textbox data based on condition and trying to restore on focus. HTML code size is very large so I am not posting here, I made a fiddle.

My code is explained with comments in that fiddle. Text restoring on focus is returning me null value.
But it works fine here

Answer 1

Some flaws in your code:

• </input> should not be used. Instead, use self-closing tags <input ... />
• parents() should be closest(). It is possible that parents() select multiple elements

• Remove .not(this), and add the following:

  if (this == _this)  {
      tt.data('text',tt.val());
  }
  else {
      tt.val('');
  }
  

• Replace the function at blur() by:

  if(ss.val(ss.data('text')).val().length > 0) ss.closest('tr').find('.humble').prop('checked', true)
  

http://jsfiddle.net/Mq8SC/9/