Ext.StoreMgr=Ext.apply(new Ext.util.MixedCollection(),{register:function(){for(var a=0,b;b=arguments[a];a++){this.add(b)}},unregister:function(){for(var a=0,b;b=arguments[a];a++){this.remove(this.lookup(b))}},lookup:function(a){return typeof a=="object"?a:this.get(a)},getKey:function(a){return a.storeId||a.id}});