Отправить 2 формы по клику

<form id="predzakaz" class="predzakaz" method="post" >
<input placeholder="Имя" type="text" name="name" value="" required><br>
<input placeholder="E-mail" type="email" id="email" name="email" value="" required><br>
<input placeholder="Телефон" type="text" id="phone" name="phone" pattern="+7 ([0-9]{3}) [0-9]{3}-[0-9]{2}-[0-9]{2}" type="tel" value="" required><br>
<input type="hidden" name="titleofwork" value="Парсинг новостей с помощью php (78 стр) - 1руб">
<input type="hidden" name="urlofwork" value="katalog/kopiya-informatika/kopiya-programmirovanie/kopiya-parsing-novostej-s-pomoshhyu-php">
<br>
<input type="submit" id="go" name="go" style="opacity:0">
 
 
</form>
<form action='https://auth.robokassa.ru/Merchant/Index.aspx' method=POST>
<input type=hidden name=MrchLogin value=BANK_NAUK>
<input type=hidden name=OutSum value=1>
<input type=hidden name=InvId value=0>
<input type=hidden name=Desc value='Оплата за [eqработу Парсинг новостей с помощью php'>
<input type=hidden name=SignatureValue value=01fcdddc0c7067bd7af0687bd82b4819>
<input type=hidden name=Shp_item value='"files/test/banknauk.docx"'>
<input type=hidden name=IncCurrLabel value=>
<input type=hidden name=Culture value=ru>
<input type='submit' name='gone' id='gone' value='Оплатить'></form>