Live Feed - Calendar

steps:-
1.http://52.66.76.140/newsinfo/manage-categories.php
2. login admin
3. post > add post

Bug:- 

• where is located add post module have available calendar button.
• Event Start Date Time / Event End Date Time/ Visible Until field.
  1. Calendar field not displayed middle.
  2. when i click to Calendar icon after is not open.

Expected:-
1. when i click Calendar field should be displayed middle.
2. when i click to Calendar icon after calendar should be open ( if i click entire in calendar        field icon calender should not open)