jQuery Grid Plugin - jqGrid

Hi,

i'm using a jqgrid to add values in a list.

I have a standard navGrid in which Add is enabled and one of the field has editable=true

What i would like to do is to add suggestion through ajax calls when the user begins typing in the standard textbox jqGrid creates to add a line.

Is there a way to do it with standard functions in jqGrid in the add section ?  or is there another way to do it ?

Thanks