Using Post Method to add record to zoho creator

Using Post Method to add record to zoho creator

Hello
What is the content of the post message written directly in ajax to add a record in Zoho Creator
new Ajax.Request(url_process, {
method: 'post',
contentType:'application/xml+atom',
postBody : feed,
asynchronous: true,....




where var feed="to be defined") ?

I have tried for feed :
<input type="text" name="xxx" value="yyy">
Zoho creator replies with a success message and add a blank record (no value)

<field name="xxx"><value>yyy</value></field>
Zoho creator replies with a success message and add a blank record (no value)

Thanks for your answer