How to re-enable option from drop down

How to re-enable option from drop down

I can't re enable a option from my drop down.  For some weird reasons I can disable but can't revert back. Is there any work around on this? I'm using SharePoint 2007
  1. $(document).ready(function()
  2. if($("#ctl00_m_g_98b27f90_2d47_4399_9f55_39944c5c3d72_ctl00_ctl04_ctl23_ctl00_ctl00_ctl04_ctl00_DropDownChoice option[value='Validating']")){
  3. $("#ctl00_m_g_98b27f90_2d47_4399_9f55_39944c5c3d72_ctl00_ctl04_ctl23_ctl00_ctl00_ctl04_ctl00_DropDownChoice option[value='Analysis']").attr("disabled", "disabled");
  4. }
  5. else if($("#ctl00_m_g_98b27f90_2d47_4399_9f55_39944c5c3d72_ctl00_ctl04_ctl23_ctl00_ctl00_ctl04_ctl00_DropDownChoice option[value='Resolving']")){
  6. $("#ctl00_m_g_98b27f90_2d47_4399_9f55_39944c5c3d72_ctl00_ctl04_ctl23_ctl00_ctl00_ctl04_ctl00_DropDownChoice option[value='Analysis']").removeAttr("disabled");
  7. }
  8. });