Update custom fields on serial number records

@author

i have custom item number fields associated with serialized inventory items.

information on custom field are known much after the items are received into stocks.

so we need to update those custom fields using scripts.

is there any sample script that can update a custom field on the inventory number record?

thanks.

here is the code I tried. it is not saving the changes...i found the custom field names from the xml dump of the item page.

 /**   * @author amuthenn   */  function updateSerialNumberRecord()  {     var results = nlapiSearchRecord('item', 180, null, null);      if (results == null) return;      var t = '';       for (var i = 0; i < results.length; i++)    {      var type = results[i].getRecordType();    var itemId = results[i].getId();        var itemRecord = nlapiLoadRecord(type, itemId); // serialized inventory item record    var numbersCount = itemRecord.getLineItemCount('numbers'); // count of serial numbers        for (var j=1; j<=numbersCount; j++)    {     var serialNumber = itemRecord.getLineItemValue('numbers', 'serialnumber', j);     var esn = itemRecord.getLineItemValue('numbers', 'custitemnumber1disp', j);     var sim = itemRecord.getLineItemValue('numbers', 'custitemnumber2disp', j);     var imei= itemRecord.getLineItemValue('numbers', 'custitemnumber3disp', j);             if (esn == null || esn == "") itemRecord.setLineItemValue('numbers', 'custitemnumber1disp', j,'empty esn');