/**

* Created by Charlie on 17/05/2017.
*/

function lockScrollAndGetScrollTop() {

$('body').css('top', ( $(document).scrollTop()) + 'px')
    .addClass('no-scroll');

}

function unlockScroll() {

$('body').css('top', -(document.documentElement.scrollTop) + 'px')
    .removeClass('no-scroll');

}