Как проверить пароль и пароль введите в HTML
<label>password :
<input name="password" id="password" type="password" onkeyup='check();' />
</label>
<br>
<label>confirm password:
<input type="password" name="confirm_password" id="confirm_password" onkeyup='check();' />
<span id='message'></span>
</label>
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Glamorous Goosander