function css(a) {
    var sheets = document.styleSheets, o = {};
    for (var i in sheets) {
        var rules = sheets[i].rules || sheets[i].cssRules;
        for (var r in rules) {
            if (a.is(rules[r].selectorText)) {
                o = $.extend(o, css2json(rules[r].style), css2json(a.attr('style')));
            }
        }
    }
    return o;
}

function css2json(css) {
    var s = {};
    if (!css) return s;
    if (css instanceof CSSStyleDeclaration) {
        for (var i in css) {
            if ((css[i]).toLowerCase) {
                s[(css[i]).toLowerCase()] = (css[css[i]]);
            }
        }
    } else if (typeof css == "string") {
        css = css.split("; ");
        for (var i in css) {
            var l = css[i].split(": ");
            s[l[0].toLowerCase()] = (l[1]);
        }
    }
    return s;
}

var style = css($("#number-start"));

$('#number-start').replaceWith('<input type="text" class="number-clone" value="1" />');
$('#number-end').replaceWith('<input type="text" class="number-clone" value="100" />');

$('#description').append('<input type="hidden" id="number-start" value="8" />');
$('#description').append('<input type="hidden" id="number-end" value="8" />');

$('.number-clone').css(style);

$('#button').one('click', function() {

    var cloned = $('.number-clone');
    var startVal = cloned.eq(0).val();
    var endVal = cloned.eq(1).val();

    $('#number-start').remove();
    $('#number-end').remove();

    cloned.eq(0).replaceWith('<input type="text" id="number-start" value="' + startVal + '" />');
    cloned.eq(1).replaceWith('<input type="text" id="number-end" value="' + endVal + '" />');
});