Javascript: ScrollToElement

scroll_to_element.js

/**
 * Scrol to elem
 * @param  {String}   selector [description]
 * @param  {Function} callback [description]
 */
function scrollToElement(selector, callback){
    var animation = {scrollTop: $(selector).offset().top};
    console.log(selector);
    $('html,body').animate(animation, 'slow', 'swing', function() {
        if (typeof callback == 'function') {
            callback();
        }
        callback = null;
    });
}