JavaScript - Pasar valores sin utilizar input type = submit

<form id="form" action="javascript:">

Nombre: <input type="text" name="nombre"><br><br>

Correo: <input type="text" name="correo"><br><br>

</form>

<input type="button" onclick="test()" value="Enviar">

<script>

function test() {

document.getElementById("form").submit();

confirm("O.K.");

}

</script>

<form name="form1" method="post" action="javascript:test()">

<p><input type="text" name="field1" id="field1" size="40"></p>

<p><textarea name="field2" id="field2" cols="28"></textarea></p>

<input type="submit" onclick="this.focus()">

</form>

<script>

function test() {

var valor=document.getElementById('field1').value;

document.getElementById('field2').innerHTML="La variable contiene: " + valor;

}

</script>