Delete related records in custom function

Is there a way of deleting records in a custom module in CRM through a custom function? I cam across a post relating to doing it with the contacts table but have tried to replicate this with a custom table and it doesnt seem to work, or I have got something wrong in the function.

When a record is deleted in one custom module I want to select all related records in another custom module and delete them.

At the moment I have the following:

//Get all line items for the contract

resp = zoho.crm.searchRecords("custommodule1","(Contract ID|=|" + input.ContractID + ")");

//For each line item

for each rec in resp

{

varLineItemID=rec.get("custommodule1_ID");

linemap=map();

linemap.put("authtoken","XXXXXXXXXXXXX");

linemap.put("scope","crmapi");

linemap.put("id",varLineItemID);

test = postUrl(" https://crm.zoho.com/crm/private/xml/custommodule1/deleteRecords",linemap);

info test;

}

If anyone can provide any suggestions, alternatives or help it would be much appreciated.

Thanks.