<div id="div1ForDate" class="input-group date col-sm-3" style="width:30%">
<input class="fieldvalue1 form-control input-disabled" onchange="DefaultAns1Check(this.value)" data-val="true" data-val-date="Search by date" id="Date1Answer" type="text" readonly="readonly">
<span id="spn" class="input-group-addon wizardTxtIcon" style=""><i class="fa fa-calendar"></i>
</span>
</div>
when i click on checkbox I need to disable this datepicker