Q1396 How can I pass the values of a selected options to another select form field and then submit them all of form submission?

<script language="JavaScript"><!--
function transfer() {
    var defaultSelected = true;
    var selected = true;
    var optionName = new Option(document.leftForm.leftSelect.options[document.leftForm.leftSelect.selectedIndex].text,
                                document.leftForm.leftSelect.options[document.leftForm.leftSelect.selectedIndex].value,
                                defaultSelected, selected)
    var length = document.rightForm.rightSelect.length;
    document.rightForm.rightSelect.options[length] = optionName;
    history.go(0);
}
//--></script>

<table><tr><td>

<form name="leftForm">
<select name="leftSelect">
<option value="1">one
<option value="2">two
</select>

<input type="button" value="Transfer" onClick="transfer()">
</form>

</td><td>

<form name="rightForm">
<select name="rightSelect" multiple>
</select>
<input type="submit" value="Submit"
</form>

</td></tr></table>