Simple pagination function

pagination.js

function getPages(pageCount, current, padding, boundaryPadding) {
    var start, end, pages;

    start = current - padding;
    end = current + padding;

    if (start < 0) {
        end += Math.abs(start) + 1;
    }
    if (end > pageCount) {
        start -= end - pageCount;
    }

    pages = [];

    function pushPage(num) {
        pages.push({
            link: true,
            num: num,
            label: num
        });
    }

    function pushEllipsis() {
        pages.push({
            ellipsis: true,
            label: '...'
        });
    }

    function pushCurrent(num) {
        pages.push({
            num: num,
            current: true,
            label: num
        });
    }

    for (var i = 1; i <= pageCount; i++) {
        if (i > boundaryPadding && i < start - 1) {
            continue;
        }
        if (i > end + 1 && i <= pageCount - boundaryPadding) {
            continue;
        }

        if (i == start - 1 && start - 2 > boundaryPadding) {
            pushEllipsis();
            continue;
        }
        if (i == end + 1 && end + 1 < pageCount - boundaryPadding) {
            pushEllipsis();
            continue;
        }

        if (i == current) {
            pushCurrent(i);
            continue;
        }

        pushPage(i);
    }
    return pages;
}