function centerModals(){$(".modal").each(function(o){var n=$(this).clone().css("display","block").appendTo("body"),t=50<(t=Math.round((n.height()-n.find(".modal-content").height())/2))?t:0;n.remove(),$(this).find(".modal-content").css("margin-top",t)})}$(".modal").on("show.bs.modal",centerModals),$(function(){$(".items").waterFall(),$(window).on("resize",function(){$(".items").waterFall()})});var iTop,timer=null,bSys=!0;window.onscroll=function(){bSys||clearInterval(timer),bSys=!1},$(".back_top").click(function(){clearInterval(timer);var o;timer=setInterval(function(){iTop=$(window).scrollTop(),o=Math.floor(iTop/6+1),bSys=!0,$(window).scrollTop(iTop-o)},30)});