js scroll animations stop scrolling code example
Example: how to interrupt scroll with jquery
$('body,html').bind('scroll mousedown wheel DOMMouseScroll mousewheel keyup touchmove', function (e) {
if (e.which > 0 || e.type == "mousedown" || e.type == "mousewheel" || e.type == "touchmove") {
$("html,body").stop();
}
});