changepassword.php

<form method="POST" class="nk-form nk-form-style-1">
<div class="form-group">
<input type="password" class="form-control required" name="oldpass" placeholder="Old Password">
</div>
<div class="form-group">
<input type="password" class="form-control required" name="passwd" placeholder="New Password">
</div>
<div class="form-group">
<input type="password" class="form-control required" name="repasswd" placeholder="Repeat Password">
</div>
</br>
<input type="submit" name="changepw" class="btn btn-primary btn-block" value="Change Password">
</form>