[BRotondi]

O.K. here an example with an own script: When registering, "Additional Infos" will be collapsed:

Replace in Template register

<h3 class="blocksubhead">{vb:rawphrase additional_information}</h3>

with

<script type="text/javascript">
    function RegistryDetailsOn (setcookie) {
        $("#registry_details").css({ "display": "" });
        $("#registry_details_link").css({ "background": "url('images/buttons/collapse_40b.png') no-repeat scroll 0 0 transparent","padding-left": "17px"});

        _set_cookie('RegistryDetails_visible', 1, setcookie);
    }
    function RegistryDetailsOff (setcookie) {
        $("#registry_details").css({ "display": "none" });
        $("#registry_details_link").css({ "background": "url('images/buttons/collapse_40b_collapsed.png') no-repeat scroll 0 0 transparent","padding-left": "17px" });
    
        _set_cookie('RegistryDetails_visible', 0, setcookie);
    }
    function RegistryDetailsInit () {
        t = fetch_cookie('RegistryDetails_visible');
        if (t=="1") {
            RegistryDetailsOn(0);
        } else {
            RegistryDetailsOff(0);
        }
    }
    function RegistryDetailsSwitch () {
        if ($("#registry_details").css("display") == "none") {
            RegistryDetailsOn();
        } else {
            RegistryDetailsOff();
        }
    }
    function _set_cookie(variable, wert, setzen) {
        if (!(setzen==0)) {
            set_cookie(variable, wert);
        }
    }
    $(document).ready(function(){
        RegistryDetailsInit();
    });
</script>

<h3 class="blocksubhead"><a href="javascript:RegistryDetailsSwitch()" id="registry_details_link">{vb:rawphrase additional_information}</a></h3>
<div id="registry_details">

and

            {vb:raw customfields_other}
        </div>

with

            {vb:raw customfields_other}
        </div>
        </div>

This Solution uses jQuery and the vB-Cookie-Routines. The Script could be reduced to one switch-line, but this way you have all possibilities for more extended issues.

Regards, Bruno