2 time picker validate

HTML

<script src="http://pttimeselect.sourceforge.net/src/jquery.ptTimeSelect.js"></script>
<link rel="stylesheet" href="http://pttimeselect.sourceforge.net/src/jquery.ptTimeSelect.css">
Start Time <input id="sample1" type="text"></input>
End Time <input id="sample2" type="text"></input>

JavaScript

$(document).ready(function(){ 
    $("#sample1").ptTimeSelect();
    $("#sample2").ptTimeSelect();
    $('#ptTimeSelectSetButton a').addClass('timePickClass');
}); 
// click on div
$(document).on('click', '#ptTimeSelectSetButton', function(e) {
          alert('Working with div id');
});
//or click on <a href> tag 
$("#sample2").on('click', ".timePickClass" ,function(e) {
    alert('working with a tag class');
});