Creating a web service for F4 help

Hi All,

I want to create a web service that I can consume using JavaScript and thus can integrate with normal HTML web site. I want to achieve this by two ways

1. Pass table name and field name to the service and it will return the default search help
2. In some cases search helps are collective search helps and they have search criteria to filter data

How can I tackle with the 2nd point. First one looks straight. Pass table-field and the system will pick default DDIC search help and return values in table. However in case of collective help, I need to cater for the search parameters and I am not aware of any FM that will allow me to do  it.

Any help appreciated .

Regards

Abhi