366";
                    else
                        context.strokeStyle="#3366AA";
                else
                    context.strokeStyle="#AA3366";
                context.lineWidth=3;
                context.stroke();
                context.closePath();
            }
        }
    }
}


function inc(counter_name) {
    var counter = document.getElementById(counter_name+"_input");
    counter.value = Number(counter.value) + 1;
    eval('change_' + counter_name + '()');
}

function dec(counter_nam