$(function() {
        $('.main_image a').lightBox();
        $('.koszt').css('display','none');
        $('#step2_platnosci').css('display','none');
    });

function changePhoto(s){   
    mainphoto = $('.main_image a img').attr('src');
    clickedphoto = $('#photo'+s).attr('src');

    $('.main_image a img').attr('src',clickedphoto.replace('small', 'medium'));
    $('.main_image a').attr('href',clickedphoto.replace('small', 'normal'));
    $('#photo'+s).attr('src',mainphoto.replace('medium', 'small'));    
}

function billingDocument(type){
    if (type == 'paragon'){
        $('#faktura').css('display','none');
        $('#faktura-firma').css('display','none');
        return;
    }

    if (type == 'faktura'){
        $('#faktura').css('display','block');
        $('#faktura-firma').css('display','none');
        return;
    }

    if (type == 'faktura-firma'){
        $('#faktura').css('display','block');
        $('#faktura-firma').css('display','block');
        return;
    }
}
var shipping;
var payment;

function changeShipping(name){
    shipping = name;
    $('#step2_platnosci').css('display','block');

    if (shipping == 'odbior'){
        $('#step2_platnosci').css('display','none');
        payment='gotowka';
    }
    if (payment != '')
        changePayment(payment);
}

function changePayment(name){
    payment = name;
    $('p.koszt').css('display','none');
    $('p#'+shipping+'_'+payment).css('display','block');
    $('input#shippingandpayment').attr('value',shipping+'_'+payment);
}