jquery - DateTime picker in Ruby on Rails -


i want add datetime picker on ror app.
add:
1. jquery-ui-timepicker-addon.js file in "assest/javascripts",
2. jquery-ui-timepicker-addon.css in "assest/stylesheets".
in .erb file, add this:

<html>    <head>      <%= javascript_include_tag "jquery-ui-timepicker-addon" %>      <%= stylesheet_link_tag "jquery-ui-timepicker-addon" %>    </head>    <body>      <script>$('#ngo').datetimepicker();</script>      <input type="text" id="ngo" />    </body> </html>

but when run it. have following errors:

uncaught typeerror: cannot read property 'timepicker' of undefined             jquery-ui-timepicker-addon.js:21 uncaught typeerror: cannot read property 'timepicker' of undefined             jquery-ui-timepicker-addon.js:21 uncaught typeerror: object [object object] has no method 'datetimepicker'

any help?

link these script:

<script src="http://code.jquery.com/jquery-1.9.1.js"></script> <script src="http://code.jquery.com/ui/1.10.2/jquery-ui.js"></script>

or can download these script , add application directory (app/assets/javascripts/something.js or public/javascripts/something.js)

and add <%= javascript_include_tag "something" %> application layout.

after code html , js

html

<input type="text" class='tinytext' id="datepicker" name='time_from'>

javascript

<script type="text/javascript">     $(function () {          $("#datepicker").datepicker({             dateformat:'mm/dd/yy'         });  </script>

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