how to closed current modal when i open new modal on same modal

how to closed current  modal when i open new modal on same modal
or how to closed previous modal when i open new one-
here is the full solution with an example---

You need to add following attribute to the link or button where you want add this functionality:

 data-dismiss="modal" data-toggle="modal" id="forgotPassword" data-target="#ModalForgotPassword"

<!--model login start -->

  <div class="modal fade" id="myModal_login" role="dialog">

    <div class="modal-dialog modal-md">

    

      <!-- Modal content-->

      <div class="modal-content">

        <div class="modal-header">

            

             <h5 class="modal-title" style="color:#4f7942"><span class="fa fa-sign-in"></span> Log in</h5>

          <button type="button" class="close" data-dismiss="modal">&times;</button>

         

        </div>

     

        

<div class="modal-body">

            <form  name="LoginForm"  action="validate_cutomer.php" method="post">

        

    <div class="form-group">

     <div class="input-container-form">

    <i  class="fa fa-user icon"></i>

    <input type="text" name="user_id" class="form-control input-field-form" Placeholder="Username" id="member_id" ng-model="user_mid" required>

    </div>

    </div>

             

        <div class="form-group">

             <div class="input-container-form">

         <i  class="fa fa-key icon"></i>

         <input type="password" name="user_pass" class="form-control input-field-form" Placeholder="Password" id="pwd" ng-model="user_pass" required>

        </div> 

         </div>

               

              <button type="Submit" name="login" class="buttn">Login</button>  

            

           <!-- <input type="submit" value="insert"  name="insert"> -->

             <div class="modal-footer">

                <div class="row ml-5"><a href="#" data-dismiss="modal" data-toggle="modal" data-target="#myModal_ForgetPassword">Forget Password</a></div> 

             </div>

             </form>

            

        </div>  

      </div>

    </div>

  </div>