I'm working on implementing watermark in datepicker text field (JQuery V1.8.9). I have a datepicker field with watermark set (dd/mm/yyyy). Watermark text displaying in gray color. When I select a date, the text field still having the gray color instead of changing to black color. but, when i key in the date and focus out, it's working fine. Also, this is working fine in Chrome but not with Firefox. I'm not sure the exact cause... 

Any help would be highly appreciated.

Thanks