How do I submit a form with no form ID and no submit ID, but known hidden value?

Question

the situation I'm struggling with is that there are more forms on the page that looks like this (the hiddenId is different in each form):

<form method="post">
<input type="hidden" name="hiddenId" value="111222">
<input type="submit" value="Proceed">
</form>

<form method="post">
<input type="hidden" name="hiddenId" value="111333">
<input type="submit" value="Proceed">
</form>

How do I submit with javascript (I don't mind using jQuery) a specific form that includes hiddenId of a wished value? Thank you for your help!

Answer 1

Something along these lines should get you started:

var inputs = document.getElementsByTagName("input");
for(var i = 0; i < inputs.length; i++) {
    if(inputs[i].type === "hidden" && inputs[i].value === "111333") {
        inputs[i].form.submit();
    } 
}

If you can use jQuery:

$("input[type='hidden'][value='something']").closest("form").submit();