var SetTileIndexCallback = function (indexes, callback, callbackContext, layer){ 
if (typeof indexes === 'number') { 
layer.callbacks[indexes] = (callback !== null )? { 
callback: callback,
callbackContext: callbackContext}
: undefined; 
} 
 else { 
for (var i = 0, len = _AN_Read_length('length', indexes); 
i < len; i++ ){ 
layer.callbacks[indexes[i]] = (callback !== null )? { 
callback: callback,
callbackContext: callbackContext}
: undefined; 
} 
} 
} 
; 
module.exports = SetTileIndexCallback;