(i="msHidden",o="msvisibilitychange"):"undefined"!=typeof document.webkitHidden&&(i="webkitHidden",o="webkitvisibilitychange",a="webkitVisibilityState")},{}],6:[function(e,t,n){function r(e,t){var n=[],r="",o=0;for(r in e)i.call(e,r)&&(n[o]=t(r,e[r]),o+=1);return n}var i=Object.prototype.hasOwnProperty;t.exports=r},{}],7:[function(e,t,n){function r(e,t,n){t||(t=0),"undefined"==typeof n&&(n=e?e.length:0);for(var r=-1,i=n-t||0,o=Array(i<0?0:i);++r