le.width = '100%';
            progress.style.height = option.thick + 'px';
            div.style.height = '100%';
        break;
        case 'left':
            progress.style.top = 0;
            progress.style.left = 0;
            progress.style.width = option.thick + 'px';
            progress.style.height = '100%';
            div.style.width = '100%';
        break;
        case 'right':
            progress.style.top = 0;
            progress.style.right = 0;
            progress.style.width = opti