Fetch record

I am building a custom function and I am fecth a record of CRM from CREATOR. Specifically, I am using the zoho.crm.searchRecords("salesorders",sCondicion) function.

The result is

{"Sales Order Owner":"Matias"
,"Comisión Canal":"99"
,"Account Name":"3M Argentina S.A.C.I.F.I.A"
,"Created By":"Matias"
,"SALESORDERID":"1396182000000400001"
,"MODIFIEDBY":"1396182000000083001"
,"Venta con Mantenimiento":"Si"
,"SMOWNERID":"1396182000000083001"
,"Discount":"0"
,"SO Number":"1396182000000400003"
,"SMCREATORID":"1396182000000083001"
,"Adjustment":"0"
,"Currency":"USD"
,"Subject":"Pruenba 1"
,"Exchange Rate":"1.000000000"
,"Tax":"0"
,"ACCOUNTID":"1396182000000354422"
,"Grand Total":"9100"
,"product":"[{Product Name=Generador Java .Net - 1er Licencia, Quantity=1.0, List Price=3100.0, Unit Price=1000.0, Total After Discount=3100.0, Quantity in Stock=0.0, Tax=0.0, Net Total=3100.0, Discount=0.0, Product Id=1396182000000099007, Total=3100.0},
{Product Name=Generador Java .Net - de 2 a 10, Quantity=3.0, List Price=2000.0, Unit Price=0.0, Total After Discount=6000.0, Quantity in Stock=0.0, Tax=0.0, Net Total=6000.0, Discount=0.0, Product Id=1396182000000099008, Total=6000.0}]"
,"Status":"Aprobada"
,"Created Time":"2015-08-27 16:48:15"
,"Modified By":"Matias"
,"Sub Total":"9100"
,"Modified Time":"2015-08-27 16:48:15"}

for values such as Account Name, I use reg.get(("Account Name")) function.

My question is, how do I read the value of Product Name?

Thanks in advance