(function(a){a(document).ready(function(){if(a(".btParallax").length>0){window.bt_raf_lock=false;a(window).on("mousewheel",function(b){});a(window).on("scroll",function(){if(!window.bt_raf_lock){window.bt_raf_lock=true;bt_requestAnimFrame(bt_raf_loop)}});window.bt_requestAnimFrame=function(){return(window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(b){window.setTimeout(b,1000/60)})}();bt_raf_loop=function(){a(".btParallax").each(function(){var b=this.getBoundingClientRect();if(b.top0){var c=a(this).data("parallax")+0.0001;var d=0;if(window.innerWidth>1024){d=parseFloat(a(this).data("parallax-offset"))}var e=(b.top)*c;a(this).css("background-position","50% "+(e+d)+"px")}});window.bt_raf_lock=false};bt_requestAnimFrame(bt_raf_loop)}})})(jQuery);