jQuery Grid Plugin - jqGrid

In a number of grids I am creating, the data is coming from the server in the form of Ids for a value e.g

1 = no

2 = yes

If I put in the editype:select and give and edit options for a select box, i.e.

colModel:[

{name:'prsnId',index:'prsnId', width:200,sortable:true,editable:true,edittype:"select",editoptions:{value:_selMbr},editrules:{required:true}},

{name:'srvcId',index:'srvcId', width:200,sortable:true,editable:true,edittype:"select",editoptions:{value:_selSrvc},editrules:{required:true}}

]

in this example _selMbr = {1:"Joe",2:"Fred",3:"Norah"}  etc

I can see the human readable labels when I edit the the row in an edit dialog, but the grid shows the option values (i.e 1,2,3 etc) instead of the option labels.

How can I display the option label in the grid instead of the value?

Thanks