When I convert a lead, the standard lead fields Company and Website are automatically converted to the account fields Account Name and Account Website the way it is described in the following link https://help.salesforce.com/apex/HTViewHelpDoc?id=lead_conversion_mapping.htm&language=en.
I have a custom object with the same fields Company and Website but when converting to account the fields are not mapped to Account Name and Account Website. Please advise how exactly to map the custom object fields with the respective account fields the way it is done with the lead?