CustomValidators with login.changepassword

[[!ChangePassword?   
	&submitVar=`change-password`   
	&placeholderPrefix=``   
	&validateOldPassword=`1`   
	&reloadOnSuccess=`0`   
	&successMessage=`Your password has been updated!`
  	&validate=`
  		nospam:blank,
    	password_new:required:AlphaNumericPassword 
	`
	&customValidators=`AlphaNumericPassword`
]]
<div class="div_box">
<form class="basic-grey" action="[[~[[*id]]]]" method="post">    
<div>[[!+successMessage]]</div>
<div class="updprof-error">[[!+error_message]]</div>
<input type="hidden" name="nospam" value="" />    
  <div class="ff">        
    <label for="password_old">Old Password </label><span class="error">[[!+error.password_old]]</span>        
    <input type="password" name="password_old" id="password_old" value="[[+password_old]]" />    
  </div>
  <div class="ff">
    <label for="password_new">New Password </label><span class="error">[[!+error.password_new]]</span>         
    <input type="password" name="password_new" id="password_new" value="[[+password_new]]" />
  </div>    
  <div class="ff">
    <label for="password_new_confirm">Confirm New Password </label><span class="error">[[!+error.password_new_confirm]]</span>        
    <input type="password" name="password_new_confirm" id="password_new_confirm" value="[[+password_new_confirm]]" />
  </div>    
  <div class="ff">
    <input class="a_links" type="submit" name="change-password" value="Change Password" />    
  </div>
</form>
</div>