shell bypass 403
!function(u){var h=u(window),c=h.height();h.on("resize",function(){c=h.height()}),u.fn.parallax=function(i,e,n){var r,l,a=u(this);function t(){var o=h.scrollTop();a.hasClass("wd-parallax")&&a.each(function(){var n=u(this),t=n.offset().top;t+r(n)<o||o+c<t||a.attr("style","background-position: "+i+" "+Math.round((l-o)*e)+"px !important")})}a.each(function(){l=a.offset().top}),r=n?function(n){return n.outerHeight(!0)}:function(n){return n.height()},(arguments.length<1||null===i)&&(i="50%"),(arguments.length<2||null===e)&&(e=.1),(arguments.length<3||null===n)&&(n=!0),h.bind("scroll",t).on("resize",t),t()}}(jQuery);