Add new Quote from my website to CRM Quotes by using API

Hi:

I asked zoho crm support that if I can use the Zoho CRM - API methods for Quotes module, the answer is yes.

I have done API methods for Contacts, Leads, Accounts modules, but since the a Quote can have one or more than one products, how can we format the XMLDATA for sending those information?

For example, this is for adding a new lead, what if I want to add a Quote with 1 or more than 1 products?
string XMLDATA = "<Leads>" +
                              "<row no=\"1\">" +
                              "<FL val=\"First Name\">MyFirstName</FL>" +
                              "<FL val=\"Last Name\">MyLastName</FL>" +
                              "<FL val=\"Company\">MyCompanyName</FL>" +
                              "</row>" +
                              "</Leads>";

Thanks.