function(typeCode, listener){
				var c = createdByType[typeCode];
				if(c === undefined) c = createdByType[typeCode] = [];
				c.push(listener);
			}
function(typeCode, listener){
				var c = createdByType[typeCode];
				if(c === undefined) c = createdByType[typeCode] = [];
				c.push(listener);
			}
function ( typeCode , listener ) { var c = createdByType [ typeCode ] ; if ( c === undefined ) c = createdByType [ typeCode ] = [ ] ; c . push ( listener ) ; }
cb(typeCode, id)
cb ( typeCode id )