function getEl(id)
{
    element = document.getElementById(id);

    return element;
}

function hideEl(id)
{
    var element = getEl(id);

    element.style.display = 'none';
}

function showEl(id)
{
    var element = getEl(id);

    element.style.display = '';
}

function ShowHide(sid, last)
{
    
    var el = 'info_' + sid;

    if(getEl(el).style.display == 'none') {

        var class_name = (last == true) ? 'meno_info ultimo' : 'meno_info';

        showEl(el);
        getEl('p_' + sid).className = class_name;
        getEl('href_' + sid).innerHTML = 'CHIUDI OFFERTE';

    } else {

        var class_name = (last == true) ? 'piu_info ultimo' : 'piu_info';

        hideEl(el);
        getEl('p_' + sid).className = class_name;
        getEl('href_' + sid).innerHTML = 'OFFERTE PER GLI ALTRI PERIODI';

    }
}