/**
 * Filtrowanie
 */
function applyFilter(form)
{
    var query = '';
    var path = '';
    if(location.toString().indexOf("?") == -1)
    {
        query = '?';
        path = location.toString();
    }
    else
    {
        query = location.toString().substring(location.toString().indexOf("?"))+'&';
        path = location.toString().substring(0,location.toString().indexOf("?"));
    }
    $('#'+form+' input').each(function(index) {
        if($(this).attr('type')=='radio' && $(this).attr('checked'))
        {
            var filter = $(this).attr('name');
            if(query.indexOf(filter+'=')>=0)
            {
                var part1 = query.substring(0,query.indexOf(filter+'='));
                query = part1+filter+'='+$(this).val()+query.substring(query.indexOf('&',query.indexOf(filter+'=')));
            }
            else
                query += filter+'='+$(this).val()+'&';
        }
        if($(this).attr('type')=='text')
        {
            var filter = $(this).attr('name');
            if(query.indexOf(filter+'=')>=0)
            {
                var part1 = query.substring(0,query.indexOf(filter+'='));
                query = part1+filter+'='+$(this).val()+query.substring(query.indexOf('&',query.indexOf(filter+'=')));
            }
            else
                query += filter+'='+$(this).val()+'&';
        }
        if($(this).attr('type')=='checkbox')
        {
            var filter = $(this).attr('name')+'='+$(this).val();
            if(query.indexOf(filter+'&')>=0 && !$(this).attr('checked'))
            {
                var part1 = query.substring(0,query.indexOf(filter+'&'));
                query = part1+query.substring(query.indexOf('&',query.indexOf(filter+'&'))+1);
            }
            else if(query.indexOf(filter+'&')<0 && $(this).attr('checked'))
            {
                query += filter+'&';
            }
        }
    });
    $('#'+form+' select').each(function(index) {
        var filter = $(this).attr('name');
        if(query.indexOf(filter+'=')>=0)
        {
            var part1 = query.substring(0,query.indexOf(filter+'='));
            query = part1+filter+'='+$(this).val()+query.substring(query.indexOf('&',query.indexOf(filter+'=')));
        }
        else
            query += filter+'='+$(this).val()+'&';
    });

    //alert(path+query.substring(0,query.length-1));
    window.location = path+query.substring(0,query.length-1);
}

function clearFilter(form)
{
    var query = '';
    var path = '';
    if(location.toString().indexOf("?") == -1)
    {
        query = '?';
        path = location.toString();
    }
    else
    {
        query = location.toString().substring(location.toString().indexOf("?"))+'&';
        path = location.toString().substring(0,location.toString().indexOf("?"));
    }

    $('#'+form+' input').each(function(index) {
        var filter = $(this).attr('name')+'='+$(this).val();
        if(query.indexOf(filter+'&')>=0)
        {
            var part1 = query.substring(0,query.indexOf(filter+'&'));
            query = part1+query.substring(query.indexOf('&',query.indexOf(filter+'&'))+1);
        }
    });
    //alert(path+query.substring(0,query.length-1));
    window.location = path+query.substring(0,query.length-1);
}

function clearAllFilters()
{
    if(location.toString().indexOf("?") >= 0)
        window.location = location.toString().substring(0,location.toString().indexOf("?"));
}

/**
 * Sortowanie
 */
function sortBy(by)
{
    var query = '';
    var path = '';
    if(location.toString().indexOf("?") == -1)
    {
        query = '?';
        path = location.toString();
    }
    else
    {
        query = location.toString().substring(location.toString().indexOf("?"))+'&';
        path = location.toString().substring(0,location.toString().indexOf("?"));
    }
    if(by=='name' && $('#sort_name').hasClass('desc'))
        by+='1';
    else if(by=='name' && $('#sort_name').hasClass('asc'))
        by+='2';
    else if(by=='price' && $('#sort_price').hasClass('desc'))
        by+='1';
    else if(by=='price' && $('#sort_price').hasClass('asc'))    
        by+='2';
    if(query.indexOf('sort=')>=0)
    {
        var part1 = query.substring(0,query.indexOf('sort='));
        query = part1+'sort='+by+query.substring(query.indexOf('&',query.indexOf('sort=')));
    }
    else
        query += 'sort='+by+'&';
    window.location = path+query.substring(0,query.length-1);
}