jQuery ( function ($) {
    $("button#step1-button").click(function(){
        var mainElements = $('form#main-form :input');
        for(i=0; i<mainElements.length; i++) {
            if(mainElements[i].type == 'submit' || mainElements[i].name == 'b' || mainElements[i].name == 'mailinglist') {
                continue;
            }
            $('form#step1-form input[name="'+mainElements[i].name+'"]').val(mainElements[i].value);
        }

        var checked= $("form#main-form input:checkbox[name='mailinglist']").is(":checked");
        $("form#step1-form input:checkbox[name='mailinglist']").attr("checked",checked);

        return true;
    });
});