jQuery Grid Plugin - jqGrid

I'm using inline editing. I don't have any code implemented yet, because first I need to know if this is possible. Let's suppose I have the example code

colModel:[ {name:'id',index:'id', width:55},{name:'invdate',index:'invdate', width:90, editable:true}, {name:'name',index:'name', width:100,editable:true}, {name:'amount',index:'amount', width:80, align:"right",editable:true}, {name:'tax',index:'tax', width:80, align:"right",editable:true}, {name:'total',index:'total', width:80,align:"right",editable:true}, {name:'note',index:'note', width:150, sortable:false,editable:true} ],

In this example, the field 'name' is editable, so it will be passed to the server (a struts action in my particular case) through the request.

If the field "id" is the PK of my table, how can I pass it to the server script without making it editable?

Now, let's suppose the PK of my table is formed by two attributes, let's say 'name' and 'tax'. How can I pass these two without making them editable? Even more, how can I pass them without showing them to the user in the table? (as they conform the primary key of the table, I don't want the user neither modify them nor even view them).

I hope this helps to clarify my question... thanks in advance

Regards

Ok, it's done :)) Thanks a lot, the truth is that I was looking at the examples and forgot about the docs themselves... after reading and a little bit of testing it's working now.The only thing I can't solve is that when I change a cell value and press enter, the value sent to the action servlet is the old one, not the one I've just entered. Perhaps I've not understood the doc in a correct manner...I've checked that, if I introduce a second new value in the cell, the first new value is sent to de servlet and then the field is updated to that value (the second). Could you help me with this?

Thank you very much!