Вот кусок кода.
var intervalLeft;
var intervalRight;
$(function() {
    $(".iconaria ").sortable({
        connectWith: ".iconaria",
		scroll: false,
		sort: function(event, ui) { 
										
						listItem = $('.ls-nav-active');
						ind = $('.ls-bottom-slidebuttons a').index(listItem);
						var browserWindow = $(window);
						var width = browserWindow.width();
						if (event.pageX < (width*(ind))+30) {
						intervalLeft = setInterval(function(){ shft(ind-1) },2000);
						} else { clearInterval(intervalLeft); }
																
						if (event.pageX > (width*ind)+width-30) {
						intervalRight = setInterval(function(){ shft(ind+2) },2000);
						} else {clearInterval(intervalRight); }
																
						},
		stop: function(event, ui) { mDownmMow();  clearInterval(intervalLeft); clearInterval(intervalRight);
                 }
    });
    $(".iconaria").disableSelection();
});