on edit how to update a field with value of a session var?

Hi

I’ve added a custom button to my grid and when I click it I get the id of the selected field (if any). I want to update a specific field on the row and reload the grid, I guess I need to create a ajax function but I’m not sure if there is a easiest way to do it.

The button code gets the id with this:

var ids = jQuery(‘#list1’).jqGrid(‘getGridParam’,’selrow’);

si I have in ids the id of the field, now I want to execute a query like:

update mytable set status=’X’ where id=$ids

Should I use ajax for this or there is any way to define a function in the grid and just call to execute it from the javascript button code?

Thanks in advance