function check_num(act) {
    //if (document.forms[0].
    document.forms[0].action.value=act;
    document.forms[0].submit();
}

// Rollover onglets
function VersionNavigateur(Netscape, Explorer)
{
    if ((navigator.appVersion.substring(0,3) >= Netscape && navigator.appName == 'Netscape') ||
        (navigator.appVersion.substring(0,3) >= Explorer && navigator.appName.substring(0,9) == 'Microsoft'))
    return true;
    else return false;
}