form with multiple input fields to populate by external side-server script

We need a Javascript/jQuery/AJAX expert to write the required functions/html/etc to do the following: - A webpage with undefined number of textarea fields (fields will be produced programmatically - not in the scope of this project) - When clicking on the submit button next to any textarea, it will call a php script (Also, out of the scope of this project) and populate the result from the php script into the adjacent textarea. - The new populated textarea will be included in a form that can be submitted. Your task is to write the javascript/jQuery/AJAX or any other web scripting language side, and the html that will be used as an example to produce programmatically. The image attached should give you an idea about the project.