var aliyun_global_observer={_callbacks:{},register:function(a,b,c){if(a){b=b||function(){};var d;aliyun_global_observer._callbacks[a]||(d=aliyun_global_observer._callbacks[a]=[]),d&&"[object Array]"==Object.prototype.toString.call(d)&&d.push({fn:b,context:c})}},trigger:function(a){var b=[];if(a)b=aliyun_global_observer._callbacks[a];else for(var c in aliyun_global_observer._callbacks)b.concat(aliyun_global_observer._callbacks[c]);if(b)for(var d=0,e=b.length;e>d;d++){var f=b[d],g=f.fn;return g.apply(f.context||this,[].slice.call(arguments,1))}}};