Update netsuite_toolkit.js

As previously explained, the record initialization wrapper (nlapiInitializeRecord(record_type);) it was calling an non existing api method. I changed it and test it and seems to be working fine.

Here is the existing response:

params: 
  record_type: salesorder
result: 
  total:                          0
  paypalprocess:                  false
  taxtotal:                       0
  tranid:                         584
  shipcomplete:                   false
  location: 
    name:       San Francisco
    internalid: 2
  terms: 
    name:       Net 30
    internalid: 2
  custbody_fmt_finance_declined:  false
  ccapproved:                     false
  exchangerate:                   1
  currency: 
    name:       USA
    internalid: 1
  shipmethod: 
    name:       Pick-up at store
    internalid: 2
  handlingcost:                   0
  tobefaxed:                      false
  getauth:                        false
  tobeprinted:                    false
  recordtype:                     salesorder
  trandate:                       7/10/2013
  totalcostestimate:              0
  giftcertapplied:                0
  customform: 
    name:       Z - Ramsey Sales Order Form - Line GP
    internalid: 251
  custbody_fmt_req_financial_app: false
  shipdate:                       7/12/2013
  subtotal:                       0
  currencyname:                   USA
  ismultishipto:                  false
  custbody_fmt_finance_app:       false
  estgrossprofit:                 0
  tobeemailed:                    false
success: true