javascript - Jquery passing variable problem

    for(var n=0;n<10;n++)
    {
            $('#content-scroll'+n).mousewheel(function(event, delta) {
        if (delta > 0) sliderUp(n-1);
        else if (delta < 0) sliderDown(n-1);
        return false; // prevent default
    });

    n++;
}

I have a problem with this code, variable "n" is not passed right to the mouswheel function which will add mousewheel only to number 9 (last number) and not to all 10 elements.
Can anyone explain how to pass a variable to this function so that it stays?