var nextTick=require("process/browser.js").nextTick,apply=Function.prototype.apply,slice=Array.prototype.slice,immediateIds={},nextImmediateId=0;function Timeout(e,t){this._id=e,this._clearFn=t}exports.setTimeout=function(){return new Timeout(apply.call(setTimeout,window,arguments),clearTimeout)},exports.setInterval=function(){return new Timeout(apply.call(setInterval,window,arguments),clearInterval)},exports.clearTimeout=exports.clearInterval=function(e){e.close()},Timeout.prototype.unref=Timeout.prototype.ref=function(){},Timeout.prototype.close=function(){this._clearFn.call(window,this._id)},exports.enroll=function(e,t){clearTimeout(e._idleTimeoutId),e._idleTimeout=t},exports.unenroll=function(e){clearTimeout(e._idleTimeoutId),e._idleTimeout=-1},exports._unrefActive=exports.active=function(e){clearTimeout(e._idleTimeoutId);var t=e._idleTimeout;t>=0&&(e._idleTimeoutId=setTimeout(function(){e._onTimeout&&e._onTimeout()},t))},exports.setImmediate="function"==typeof setImmediate?setImmediate:function(e){var t=nextImmediateId++,i=!(arguments.length<2)&&slice.call(arguments,1);return immediateIds[t]=!0,nextTick(function(){immediateIds[t]&&(i?e.apply(null,i):e.call(null),exports.clearImmediate(t))}),t},exports.clearImmediate="function"==typeof clearImmediate?clearImmediate:function(e){delete immediateIds[e]};