lert, console, angular*/
/**
 *
 * @authors Ted Shiu (tedshd@gmail.com)
 * @date    2014-03-01 23:51:21
 * @version $Id$
 */

function ScrollProgress (option) {
    console.log('init');
    var d4 = {
        position: 'top',
        thick: 5,
        color: 'red'
    };
    var percent;
    var dom = document.querySelector('body'),
        progress = document.createElement('div'),
        div = document.createElement('div');

    option = option || {};
    option.position = option.position || d4.position;
