jQuery Grid Plugin - jqGrid

In one of my grids, I hve set the rownumbers option to true and would like to use it a visual reference instead of the record_id.

In my event, i receive the record id and would like to retrieve its corresponding row number in the grid. Is there a way to achieve this in a relatively easy way?

using the getRowData with the id, doesn't provide me with the row number. Then i tought that i could scan all the record and count them like that. My issue at this point is; which column correspond to the id I am looking for.

Maybe there is a way to find which column is used as the id... then what if the id is an attribute of the record instead of a column(hidden or not)....

I am puzzled... Hopefully there's a better/easier way to retrieve this information without parsing the dom to retrieve this value.

Thanks