').insertAfter('.quantity input'); jQuery('.quantity').each(function() { var spinner = jQuery(this), input = spinner.find('input[type="number"]'), btnUp = spinner.find('.quantity-up'), btnDown = spinner.find('.quantity-down'), min = input.attr('min'), max = input.attr('max'); btnUp.click(function() { var oldValue = parseFloat(input.val()); if (oldValue >= max) { var newVal = oldValue; } else { var newVal = oldValue + 1; } spinner.find("input").val(newVal); spinner.find("input").trigger("change"); }); btnDown.click(function() { var oldValue = parseFloat(input.val()); if (oldValue <= min) { var newVal = oldValue; } else { var newVal = oldValue - 1; } spinner.find("input").val(newVal); spinner.find("input").trigger("change"); }); });