html - Javascript - Remove Modal Error/Success messages if modal is closed -


i have created twitter bootstrap modal, includes form submission. form includes javascript validations.

when close modal, or click anywhere else, , open again modal, js error/success styling remains still there.

how can make css error/success styling not appear if modal closed or focus modal lost?

html:

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" type="text/css">     <link rel="stylesheet" href="${resource(dir: 'css', file: 'mystylesheet.css')}" type="text/css">     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>  <button class="btn btn-primary" data-toggle="modal" data-target="#add_new_record_modal">add new department</button>   <!-- modal - add new record -->     <div class="modal fade" id="add_new_record_modal" tabindex="-1" role="dialog" aria-labelledby="mymodallabel" aria-hidden="true">         <div class="modal-dialog">             <form id="addrecordform" role="form" method="post" onsubmit="return adddepartmentvalidation();">                 <div class="modal-content">                     <div class="modal-header">                         <button type="button" class="close" data-dismiss="modal" aria-label="close"><span aria-hidden="true">&times;</span></button>                         <h4 class="modal-title" id="mymodallabel">add new department</h4>                     </div>                     <div class="modal-body">                         <p><span class="required">* required field</span></p>                         <div class="form-group">                             <label for="department_name">department name</label>                             <span class="required">*</span>                             <div class="input-group">                                 <span class="input-group-addon transparent"><span class="glyphicon glyphicon-briefcase"></span></span>                             <input type="text" id="department_name" placeholder="enter department name" autocomplete="off" name="department_name" class="form-control" onkeyup="adddepartmentnamevalidation();"/>                             </div>                             <div class="error-messages" id="department_name_errors"></div>                         </div>                         <div class="form-group">                             <label for="department_street">department street</label>                             <span class="required">*</span>                             <div class="input-group">                                 <span class="input-group-addon transparent"><span class="glyphicon glyphicon-briefcase"></span></span>                             <input type="text" id="department_street" placeholder="enter department street" autocomplete="off" name="department_street" class="form-control" onkeyup="adddepartmentstreetvalidation();"/>                             </div>                             <div class="error-messages" id="department_street_errors"></div>                         </div>                     </div>                     <div class="modal-footer">                         <button type="button" class="btn btn-danger" data-dismiss="modal">cancel</button>                         <button type="submit" class="btn btn-primary from-control" value="addrecord">add department</button>                     </div>                 </div>             </form>         </div>     </div>

css:

.container .jumbotron        /* employees-departmentents jumbotron */ {     margin-top: 100px; }  .modal-dialog .modal-content .modal-header /* update/add record modals headers */ {     background-color: #2a6496;     color: white; }  .required                   /* required fields @ forms */ {     color: red;     font-weight: bold; }  .error-messages {     color: red;     font-weight: bold; }

javascript:

window.adddepartmentvalidation = function(){     var add_department_name_validation_value = adddepartmentnamevalidation();     var add_department_street_validation_value = adddepartmentstreetvalidation();     if ( (add_department_name_validation_value)&&(add_department_street_validation_value) ) return true;    // form submitted     else return false;  // form still has errors } window.adddepartmentnamevalidation = function(){     var returned_value = true;     var dep_name = document.getelementbyid('department_name').value;     if (dep_name.length <= 2) {         document.getelementbyid('department_name').style.bordercolor = "red";         document.getelementbyid('department_name').style.borderwidth = "2px 2px 2px 2px";         document.getelementbyid('department_name_errors').style.color = "red";         document.getelementbyid('department_name_errors').innerhtml = "department name way short!!!";         if (dep_name === "") {             document.getelementbyid('department_name_errors').innerhtml = "please enter department name!!!";         }         returned_value = false;     }     else {         document.getelementbyid('department_name').style.bordercolor = "green";         document.getelementbyid('department_name_errors').style.color = "green";         document.getelementbyid('department_name_errors').innerhtml = "department name is: valid";     }      if (document.getelementbyid('department_name').value.match(/(1|2|3|4|5|6|7|8|9|0)/)) {         document.getelementbyid('department_name').style.bordercolor = "red";         document.getelementbyid('department_name_errors').style.color = "red";         document.getelementbyid('department_name_errors').innerhtml = "department name must not contain numbers!!!";         returned_value = false;     }     return returned_value; }  window.adddepartmentstreetvalidation = function(){     var returned_value = true;     var dep_street = document.getelementbyid('department_street').value;     if (dep_street.length <= 2) {         document.getelementbyid('department_street').style.bordercolor = "red";         document.getelementbyid('department_street').style.borderwidth = "2px 2px 2px 2px";         document.getelementbyid('department_street_errors').style.color = "red";         document.getelementbyid('department_street_errors').innerhtml = "department street way short!!!";         if (dep_street === "") {             document.getelementbyid('department_street_errors').innerhtml = "please enter department street!!!";         }         returned_value = false;     }     else {         document.getelementbyid('department_street').style.bordercolor = "green";         document.getelementbyid('department_street_errors').style.color = "green";         document.getelementbyid('department_street_errors').innerhtml = "department street is: valid";     }      return returned_value; }

link jsfiddle: https://jsfiddle.net/vagg77/88sqeran/

you need handle modal closing event.

for example:

$('#add_new_record_modal').on('hidden.bs.modal', function () {    $('#department_street_errors').text('');    $('#department_name_errors').text('');    $('#department_name').removeattr('style');    $('#department_street').removeattr('style'); })

https://jsfiddle.net/88sqeran/9/


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