I have a Textbox , Where i  have made it Jquery DatetimePicker . I have Buttton Go .   Now Once i click the image icon Calender , the datetimePicker gets displayed.   Now if  Suppose the user does not select any point  date .  Then , When user clicks go the button , I will not fire the validation message but instead the image calender icon should get open. Please let me know how to do this ?